400567642 has 8 divisors (see below), whose sum is σ = 600944832. Its totient is φ = 200252700.

The previous prime is 400567627. The next prime is 400567679. The reversal of 400567642 is 246765004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 400567598 and 400567607.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7167 + ... + 29197.

It is an arithmetic number, because the mean of its divisors is an integer number (75118104).

Almost surely, 2^400567642 is an apocalyptic number.

400567642 is a deficient number, since it is larger than the sum of its proper divisors (200377190).

400567642 is a wasteful number, since it uses less digits than its factorization.

400567642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31124.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 400567642 is about 20014.1860189217. The cubic root of 400567642 is about 737.1546701566.

The spelling of 400567642 in words is "four hundred million, five hundred sixty-seven thousand, six hundred forty-two".