400030622 has 16 divisors (see below), whose sum is σ = 607219632. Its totient is φ = 197635200.

The previous prime is 400030601. The next prime is 400030637. The reversal of 400030622 is 226030004.

It is a self number, because there is not a number n which added to its sum of digits gives 400030622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75872 + ... + 80972.

It is an arithmetic number, because the mean of its divisors is an integer number (37951227).

Almost surely, 2^400030622 is an apocalyptic number.

400030622 is a deficient number, since it is larger than the sum of its proper divisors (207189010).

400030622 is a wasteful number, since it uses less digits than its factorization.

400030622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5563.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 400030622 is about 20000.7655353489. The cubic root of 400030622 is about 736.8251013171.

Adding to 400030622 its reverse (226030004), we get a palindrome (626060626).

The spelling of 400030622 in words is "four hundred million, thirty thousand, six hundred twenty-two".