126200340 has 144 divisors (see below), whose sum is σ = 449484672. Its totient is φ = 28055808.

The previous prime is 126200339. The next prime is 126200341. The reversal of 126200340 is 43002621.

It is a happy number.

126200340 is a `hidden beast` number, since 1 + 2 + 620 + 0 + 3 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (126200339) and next prime (126200341).

It is a super-2 number, since 2×126200340² = 31853051632231200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126200341) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45267 + ... + 47973.

Almost surely, 2^126200340 is an apocalyptic number.

126200340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126200340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224742336).

126200340 is an abundant number, since it is smaller than the sum of its proper divisors (323284332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126200340 is a wasteful number, since it uses less digits than its factorization.

126200340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2766 (or 2761 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 126200340 is about 11233.8924687750. The cubic root of 126200340 is about 501.5953575877.

Adding to 126200340 its reverse (43002621), we get a palindrome (169202961).

The spelling of 126200340 in words is "one hundred twenty-six million, two hundred thousand, three hundred forty".