401164636 has 6 divisors (see below), whose sum is σ = 702038120. Its totient is φ = 200582316.

The previous prime is 401164601. The next prime is 401164661. The reversal of 401164636 is 636461104.

It is a junction number, because it is equal to n+sod(n) for n = 401164598 and 401164607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50145576 + ... + 50145583.

Almost surely, 2^401164636 is an apocalyptic number.

It is an amenable number.

401164636 is a deficient number, since it is larger than the sum of its proper divisors (300873484).

401164636 is a wasteful number, since it uses less digits than its factorization.

401164636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100291163 (or 100291161 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 401164636 is about 20029.0947374064. The cubic root of 401164636 is about 737.5206994477.

The spelling of 401164636 in words is "four hundred one million, one hundred sixty-four thousand, six hundred thirty-six".