63642546 has 24 divisors (see below), whose sum is σ = 150428304. Its totient is φ = 19285560.

The previous prime is 63642529. The next prime is 63642569. The reversal of 63642546 is 64524636.

63642546 is a `hidden beast` number, since 6 + 3 + 642 + 5 + 4 + 6 = 666.

It is a super-2 number, since 2×63642546² = 8100747322724232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 63642546.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 160516 + ... + 160911.

It is an arithmetic number, because the mean of its divisors is an integer number (6267846).

Almost surely, 2^63642546 is an apocalyptic number.

63642546 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

63642546 is an abundant number, since it is smaller than the sum of its proper divisors (86785758).

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

63642546 is a wasteful number, since it uses less digits than its factorization.

63642546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321446 (or 321443 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 63642546 is about 7977.6278429117. The cubic root of 63642546 is about 399.2539134189.

The spelling of 63642546 in words is "sixty-three million, six hundred forty-two thousand, five hundred forty-six".