63251940 has 24 divisors (see below), whose sum is σ = 177105600. Its totient is φ = 16867168.

The previous prime is 63251933. The next prime is 63251959. The reversal of 63251940 is 4915236.

63251940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 63251898 and 63251907.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 527040 + ... + 527159.

It is an arithmetic number, because the mean of its divisors is an integer number (7379400).

Almost surely, 2^63251940 is an apocalyptic number.

63251940 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63251940 is an abundant number, since it is smaller than the sum of its proper divisors (113853660).

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

63251940 is a wasteful number, since it uses less digits than its factorization.

63251940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054211 (or 1054209 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 63251940 is about 7953.1088261132. The cubic root of 63251940 is about 398.4354299470.

The spelling of 63251940 in words is "sixty-three million, two hundred fifty-one thousand, nine hundred forty".