396120165 has 24 divisors (see below), whose sum is σ = 737269920. Its totient is φ = 181083168.

The previous prime is 396120157. The next prime is 396120169. The reversal of 396120165 is 561021693.

It is a happy number.

It is not a de Polignac number, because 396120165 - 2³ = 396120157 is a prime.

It is a super-2 number, since 2×396120165² = 313822370239254450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396120169) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 268735 + ... + 270204.

It is an arithmetic number, because the mean of its divisors is an integer number (30719580).

Almost surely, 2^396120165 is an apocalyptic number.

396120165 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

396120165 is a deficient number, since it is larger than the sum of its proper divisors (341149755).

396120165 is a wasteful number, since it uses less digits than its factorization.

396120165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538961 (or 538954 counting only the distinct ones).

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

The square root of 396120165 is about 19902.7677723476. The cubic root of 396120165 is about 734.4163166493.

The spelling of 396120165 in words is "three hundred ninety-six million, one hundred twenty thousand, one hundred sixty-five".