400051022 has 32 divisors (see below), whose sum is σ = 704894400. Its totient is φ = 166705920.

The previous prime is 400051009. The next prime is 400051031. The reversal of 400051022 is 220150004.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 400050988 and 400051006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199328 + ... + 201324.

It is an arithmetic number, because the mean of its divisors is an integer number (22027950).

Almost surely, 2^400051022 is an apocalyptic number.

400051022 is a deficient number, since it is larger than the sum of its proper divisors (304843378).

400051022 is a wasteful number, since it uses less digits than its factorization.

400051022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2396.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 400051022 is about 20001.2755093269. The cubic root of 400051022 is about 736.8376261720.

The spelling of 400051022 in words is "four hundred million, fifty-one thousand, twenty-two".