62490640 has 40 divisors (see below), whose sum is σ = 153840600. Its totient is φ = 23525376.

The previous prime is 62490629. The next prime is 62490643. The reversal of 62490640 is 4609426.

It can be written as a sum of positive squares in 4 ways, for example, as 23503104 + 38987536 = 4848^2 + 6244^2 .

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

It is not an unprimeable number, because it can be changed into a prime (62490643) 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, 21615 + ... + 24334.

It is an arithmetic number, because the mean of its divisors is an integer number (3846015).

Almost surely, 2^62490640 is an apocalyptic number.

It is an amenable number.

62490640 is an abundant number, since it is smaller than the sum of its proper divisors (91349960).

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

62490640 is a wasteful number, since it uses less digits than its factorization.

62490640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45979 (or 45973 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 62490640 is about 7905.1021498776. The cubic root of 62490640 is about 396.8304512379.

The spelling of 62490640 in words is "sixty-two million, four hundred ninety thousand, six hundred forty".