396120156 has 48 divisors (see below), whose sum is σ = 942568704. Its totient is φ = 129452416.

The previous prime is 396120149. The next prime is 396120157. The reversal of 396120156 is 651021693.

It is a happy number.

It is a super-2 number, since 2×396120156² = 313822355978928672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396120157) 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, 135001 + ... + 137903.

It is an arithmetic number, because the mean of its divisors is an integer number (19636848).

Almost surely, 2^396120156 is an apocalyptic number.

It is an amenable number.

396120156 is an abundant number, since it is smaller than the sum of its proper divisors (546448548).

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

396120156 is a wasteful number, since it uses less digits than its factorization.

396120156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3130 (or 3128 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 396120156 is about 19902.7675462484. The cubic root of 396120156 is about 734.4163110873.

The spelling of 396120156 in words is "three hundred ninety-six million, one hundred twenty thousand, one hundred fifty-six".