401959564 has 24 divisors (see below), whose sum is σ = 727084400. Its totient is φ = 194291136.

The previous prime is 401959559. The next prime is 401959583. The reversal of 401959564 is 465959104.

It is a self number, because there is not a number n which added to its sum of digits gives 401959564.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14587 + ... + 31885.

Almost surely, 2^401959564 is an apocalyptic number.

It is an amenable number.

401959564 is a deficient number, since it is larger than the sum of its proper divisors (325124836).

401959564 is a wasteful number, since it uses less digits than its factorization.

401959564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17497 (or 17495 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 401959564 is about 20048.9292482167. The cubic root of 401959564 is about 738.0075228802.

The spelling of 401959564 in words is "four hundred one million, nine hundred fifty-nine thousand, five hundred sixty-four".