126323220 has 48 divisors (see below), whose sum is σ = 354549888. Its totient is φ = 33605760.

The previous prime is 126323213. The next prime is 126323227. The reversal of 126323220 is 22323621.

It is an interprime number because it is at equal distance from previous prime (126323213) and next prime (126323227).

It is a super-2 number, since 2×126323220² = 31915111822336800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126323227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25377 + ... + 29943.

It is an arithmetic number, because the mean of its divisors is an integer number (7386456).

Almost surely, 2^126323220 is an apocalyptic number.

126323220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126323220 is an abundant number, since it is smaller than the sum of its proper divisors (228226668).

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

126323220 is a wasteful number, since it uses less digits than its factorization.

126323220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5040 (or 5038 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 126323220 is about 11239.3603020813. The cubic root of 126323220 is about 501.7581042268.

Adding to 126323220 its reverse (22323621), we get a palindrome (148646841).

The spelling of 126323220 in words is "one hundred twenty-six million, three hundred twenty-three thousand, two hundred twenty".