400435794 has 24 divisors (see below), whose sum is σ = 946485072. Its totient is φ = 121344120.

The previous prime is 400435769. The next prime is 400435801. The reversal of 400435794 is 497534004.

400435794 is a `hidden beast` number, since 40 + 0 + 43 + 579 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1011004 + ... + 1011399.

It is an arithmetic number, because the mean of its divisors is an integer number (39436878).

Almost surely, 2^400435794 is an apocalyptic number.

400435794 is an abundant number, since it is smaller than the sum of its proper divisors (546049278).

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

400435794 is a wasteful number, since it uses less digits than its factorization.

400435794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022422 (or 2022419 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 400435794 is about 20010.8918841715. The cubic root of 400435794 is about 737.0737824159.

Adding to 400435794 its reverse (497534004), we get a palindrome (897969798).

The spelling of 400435794 in words is "four hundred million, four hundred thirty-five thousand, seven hundred ninety-four".