612640002 has 16 divisors (see below), whose sum is σ = 1319532480. Its totient is φ = 188504592.

The previous prime is 612639997. The next prime is 612640003. The reversal of 612640002 is 200046216.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (612640003) 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, 3927102 + ... + 3927257.

It is an arithmetic number, because the mean of its divisors is an integer number (82470780).

Almost surely, 2^612640002 is an apocalyptic number.

612640002 is an abundant number, since it is smaller than the sum of its proper divisors (706892478).

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

612640002 is a wasteful number, since it uses less digits than its factorization.

612640002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7854377.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 612640002 is about 24751.5656474495. The cubic root of 612640002 is about 849.3143268493.

Adding to 612640002 its reverse (200046216), we get a palindrome (812686218).

The spelling of 612640002 in words is "six hundred twelve million, six hundred forty thousand, two".