62640930 has 64 divisors (see below), whose sum is σ = 166053888. Its totient is φ = 14996160.

The previous prime is 62640911. The next prime is 62640953. The reversal of 62640930 is 3904626.

It is a super-2 number, since 2×62640930² = 7847772222529800, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26247 + ... + 28533.

It is an arithmetic number, because the mean of its divisors is an integer number (2594592).

Almost surely, 2^62640930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 62640930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83026944).

62640930 is an abundant number, since it is smaller than the sum of its proper divisors (103412958).

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

62640930 is a wasteful number, since it uses less digits than its factorization.

62640930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2391.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 62640930 is about 7914.6023273441. The cubic root of 62640930 is about 397.1483223152.

The spelling of 62640930 in words is "sixty-two million, six hundred forty thousand, nine hundred thirty".