63640062 has 48 divisors (see below), whose sum is σ = 140663952. Its totient is φ = 20791680.

The previous prime is 63640039. The next prime is 63640079. The reversal of 63640062 is 26004636.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 322948 + ... + 323144.

It is an arithmetic number, because the mean of its divisors is an integer number (2930499).

Almost surely, 2^63640062 is an apocalyptic number.

63640062 is an abundant number, since it is smaller than the sum of its proper divisors (77023890).

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

63640062 is a wasteful number, since it uses less digits than its factorization.

63640062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 63640062 is about 7977.4721560153. The cubic root of 63640062 is about 399.2487189922.

Adding to 63640062 its reverse (26004636), we get a palindrome (89644698).

The spelling of 63640062 in words is "sixty-three million, six hundred forty thousand, sixty-two".