400060636 has 6 divisors (see below), whose sum is σ = 700106120. Its totient is φ = 200030316.

The previous prime is 400060627. The next prime is 400060667. The reversal of 400060636 is 636060004.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 400060636.

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, 50007576 + ... + 50007583.

Almost surely, 2^400060636 is an apocalyptic number.

It is an amenable number.

400060636 is a deficient number, since it is larger than the sum of its proper divisors (300045484).

400060636 is a wasteful number, since it uses less digits than its factorization.

400060636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100015163 (or 100015161 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 400060636 is about 20001.5158425555. The cubic root of 400060636 is about 736.8435286693.

The spelling of 400060636 in words is "four hundred million, sixty thousand, six hundred thirty-six".