612643460 has 48 divisors (see below), whose sum is σ = 1511479872. Its totient is φ = 205641600.

The previous prime is 612643459. The next prime is 612643481. The reversal of 612643460 is 64346216.

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, 104246 + ... + 109965.

It is an arithmetic number, because the mean of its divisors is an integer number (31489164).

Almost surely, 2^612643460 is an apocalyptic number.

It is an amenable number.

612643460 is an abundant number, since it is smaller than the sum of its proper divisors (898836412).

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

612643460 is a wasteful number, since it uses less digits than its factorization.

612643460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214244 (or 214242 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 612643460 is about 24751.6355015179. The cubic root of 612643460 is about 849.3159248097.

Adding to 612643460 its reverse (64346216), we get a palindrome (676989676).

The spelling of 612643460 in words is "six hundred twelve million, six hundred forty-three thousand, four hundred sixty".