63449772 has 48 divisors (see below), whose sum is σ = 150796800. Its totient is φ = 20761920.

The previous prime is 63449753. The next prime is 63449803. The reversal of 63449772 is 27794436.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233997 + ... + 234267.

It is an arithmetic number, because the mean of its divisors is an integer number (3141600).

Almost surely, 2^63449772 is an apocalyptic number.

63449772 is the 6504-th pentagonal number.

It is an amenable number.

63449772 is an abundant number, since it is smaller than the sum of its proper divisors (87347028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63449772 is a wasteful number, since it uses less digits than its factorization.

63449772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566 (or 564 counting only the distinct ones).

The product of its digits is 254016, while the sum is 42.

The square root of 63449772 is about 7965.5365167702. The cubic root of 63449772 is about 398.8503908288.

The spelling of 63449772 in words is "sixty-three million, four hundred forty-nine thousand, seven hundred seventy-two".