396546928 has 40 divisors (see below), whose sum is σ = 806064480. Its totient is φ = 188724480.

The previous prime is 396546923. The next prime is 396546971. The reversal of 396546928 is 829645693.

It is a super-2 number, since 2×396546928² = 314498932212474368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396546923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26926 + ... + 38962.

It is an arithmetic number, because the mean of its divisors is an integer number (20151612).

Almost surely, 2^396546928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 396546928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403032240).

396546928 is an abundant number, since it is smaller than the sum of its proper divisors (409517552).

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

396546928 is a wasteful number, since it uses less digits than its factorization.

396546928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12145 (or 12139 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 52.

The square root of 396546928 is about 19913.4860835565. The cubic root of 396546928 is about 734.6799649475.

The spelling of 396546928 in words is "three hundred ninety-six million, five hundred forty-six thousand, nine hundred twenty-eight".