400974 has 16 divisors (see below), whose sum is σ = 916608. Its totient is φ = 114552.

The previous prime is 400963. The next prime is 400997. The reversal of 400974 is 479004.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 400974.

It is an unprimeable number.

400974 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 7 ways as a sum of consecutive naturals, for example, 4732 + ... + 4815.

It is an arithmetic number, because the mean of its divisors is an integer number (57288).

2⁴⁰⁰⁹⁷⁴ is an apocalyptic number.

400974 is an abundant number, since it is smaller than the sum of its proper divisors (515634).

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

400974 is a wasteful number, since it uses less digits than its factorization.

400974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9559.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 400974 is about 633.2250784674. The cubic root of 400974 is about 73.7403856087.

Adding to 400974 its reverse (479004), we get a palindrome (879978).

The spelling of 400974 in words is "four hundred thousand, nine hundred seventy-four".