63442856 has 16 divisors (see below), whose sum is σ = 121487040. Its totient is φ = 31046320.

The previous prime is 63442837. The next prime is 63442889. The reversal of 63442856 is 65824436.

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, 83990 + ... + 84741.

It is an arithmetic number, because the mean of its divisors is an integer number (7592940).

Almost surely, 2^63442856 is an apocalyptic number.

It is an amenable number.

63442856 is a deficient number, since it is larger than the sum of its proper divisors (58044184).

63442856 is a wasteful number, since it uses less digits than its factorization.

63442856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168784 (or 168780 counting only the distinct ones).

The product of its digits is 138240, while the sum is 38.

The square root of 63442856 is about 7965.1023847782. The cubic root of 63442856 is about 398.8358987907.

The spelling of 63442856 in words is "sixty-three million, four hundred forty-two thousand, eight hundred fifty-six".