400623332 has 12 divisors (see below), whose sum is σ = 703304700. Its totient is φ = 199679136.

The previous prime is 400623263. The next prime is 400623367. The reversal of 400623332 is 233326004.

It can be written as a sum of positive squares in 2 ways, for example, as 61842496 + 338780836 = 7864^2 + 18406^2 .

It is a junction number, because it is equal to n+sod(n) for n = 400623298 and 400623307.

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, 156707 + ... + 159242.

It is an arithmetic number, because the mean of its divisors is an integer number (58608725).

Almost surely, 2^400623332 is an apocalyptic number.

It is an amenable number.

400623332 is a deficient number, since it is larger than the sum of its proper divisors (302681368).

400623332 is a wasteful number, since it uses less digits than its factorization.

400623332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316270 (or 316268 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 400623332 is about 20015.5772337447. The cubic root of 400623332 is about 737.1888302143.

Adding to 400623332 its reverse (233326004), we get a palindrome (633949336).

The spelling of 400623332 in words is "four hundred million, six hundred twenty-three thousand, three hundred thirty-two".