400976 has 20 divisors (see below), whose sum is σ = 818400. Its totient is φ = 189792.

The previous prime is 400963. The next prime is 400997. The reversal of 400976 is 679004.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

400976 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356 + ... + 963.

It is an arithmetic number, because the mean of its divisors is an integer number (40920).

2⁴⁰⁰⁹⁷⁶ is an apocalyptic number.

It is an amenable number.

400976 is an abundant number, since it is smaller than the sum of its proper divisors (417424).

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

400976 is a wasteful number, since it uses less digits than its factorization.

400976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346 (or 1340 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 400976 is about 633.2266576827. The cubic root of 400976 is about 73.7405082106.

The spelling of 400976 in words is "four hundred thousand, nine hundred seventy-six".