63263920 has 40 divisors (see below), whose sum is σ = 154833840. Its totient is φ = 23973120.

The previous prime is 63263903. The next prime is 63263923. The reversal of 63263920 is 2936236.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (63263923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19291 + ... + 22330.

It is an arithmetic number, because the mean of its divisors is an integer number (3870846).

Almost surely, 2^63263920 is an apocalyptic number.

It is an amenable number.

63263920 is an abundant number, since it is smaller than the sum of its proper divisors (91569920).

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

63263920 is a wasteful number, since it uses less digits than its factorization.

63263920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41653 (or 41647 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 63263920 is about 7953.8619550505. The cubic root of 63263920 is about 398.4605830892.

The spelling of 63263920 in words is "sixty-three million, two hundred sixty-three thousand, nine hundred twenty".