63220740 has 48 divisors (see below), whose sum is σ = 193112640. Its totient is φ = 15326080.

The previous prime is 63220699. The next prime is 63220757. The reversal of 63220740 is 4702236.

It is a super-2 number, since 2×63220740² = 7993723932295200, 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 63220740.

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, 47235 + ... + 48554.

It is an arithmetic number, because the mean of its divisors is an integer number (4023180).

Almost surely, 2^63220740 is an apocalyptic number.

63220740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63220740 is an abundant number, since it is smaller than the sum of its proper divisors (129891900).

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

63220740 is a wasteful number, since it uses less digits than its factorization.

63220740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95812 (or 95810 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 63220740 is about 7951.1470870561. The cubic root of 63220740 is about 398.3699076882.

Adding to 63220740 its reverse (4702236), we get a palindrome (67922976).

The spelling of 63220740 in words is "sixty-three million, two hundred twenty thousand, seven hundred forty".