396457026 has 32 divisors (see below), whose sum is σ = 945589248. Its totient is φ = 108348240.

The previous prime is 396456989. The next prime is 396457027. The reversal of 396457026 is 620754693.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (396457027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204240 + ... + 206171.

It is an arithmetic number, because the mean of its divisors is an integer number (29549664).

Almost surely, 2^396457026 is an apocalyptic number.

396457026 is an abundant number, since it is smaller than the sum of its proper divisors (549132222).

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

396457026 is a wasteful number, since it uses less digits than its factorization.

396457026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410446.

The product of its (nonzero) digits is 272160, while the sum is 42.

The square root of 396457026 is about 19911.2286411462. The cubic root of 396457026 is about 734.6244404639.

The spelling of 396457026 in words is "three hundred ninety-six million, four hundred fifty-seven thousand, twenty-six".