134220240 has 400 divisors, whose sum is σ = 583355520. Its totient is φ = 27786240.

The previous prime is 134220239. The next prime is 134220257. The reversal of 134220240 is 42022431.

134220240 is a `hidden beast` number, since 1 + 3 + 422 + 0 + 240 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 498826 + ... + 499094.

Almost surely, 2^134220240 is an apocalyptic number.

134220240 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 134220240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291677760).

134220240 is an abundant number, since it is smaller than the sum of its proper divisors (449135280).

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

134220240 is a wasteful number, since it uses less digits than its factorization.

134220240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312 (or 297 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 134220240 is about 11585.3459162858. The cubic root of 134220240 is about 512.0031941533.

Adding to 134220240 its reverse (42022431), we get a palindrome (176242671).

The spelling of 134220240 in words is "one hundred thirty-four million, two hundred twenty thousand, two hundred forty".