612742460 has 48 divisors (see below), whose sum is σ = 1405918080. Its totient is φ = 222469440.

The previous prime is 612742453. The next prime is 612742477. The reversal of 612742460 is 64247216.

It is a congruent number.

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, 171371 + ... + 174909.

It is an arithmetic number, because the mean of its divisors is an integer number (29289960).

Almost surely, 2^612742460 is an apocalyptic number.

It is an amenable number.

612742460 is an abundant number, since it is smaller than the sum of its proper divisors (793175620).

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

612742460 is a wasteful number, since it uses less digits than its factorization.

612742460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4346 (or 4344 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 612742460 is about 24753.6352885793. The cubic root of 612742460 is about 849.3616706926.

Adding to 612742460 its reverse (64247216), we get a palindrome (676989676).

The spelling of 612742460 in words is "six hundred twelve million, seven hundred forty-two thousand, four hundred sixty".