400564550746 has 8 divisors (see below), whose sum is σ = 603425568564. Its totient is φ = 199422694560.

The previous prime is 400564550741. The next prime is 400564550783. The reversal of 400564550746 is 647055465004.

It can be written as a sum of positive squares in 2 ways, for example, as 295325946721 + 105238604025 = 543439^2 + 324405^2 .

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 = 400564550696 and 400564550705.

It is not an unprimeable number, because it can be changed into a prime (400564550741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429789825 + ... + 429790756.

Almost surely, 2^400564550746 is an apocalyptic number.

400564550746 is a deficient number, since it is larger than the sum of its proper divisors (202861017818).

400564550746 is a wasteful number, since it uses less digits than its factorization.

400564550746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859580816.

The product of its (nonzero) digits is 2016000, while the sum is 46.

The spelling of 400564550746 in words is "four hundred billion, five hundred sixty-four million, five hundred fifty thousand, seven hundred forty-six".