612464644 has 96 divisors (see below), whose sum is σ = 1301916672. Its totient is φ = 248832000.

The previous prime is 612464641. The next prime is 612464681. The reversal of 612464644 is 446464216.

It is a super-2 number, since 2×612464644² = 750225880300093472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (612464641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1414252 + ... + 1414684.

It is an arithmetic number, because the mean of its divisors is an integer number (13561632).

Almost surely, 2^612464644 is an apocalyptic number.

It is an amenable number.

612464644 is an abundant number, since it is smaller than the sum of its proper divisors (689452028).

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

612464644 is a wasteful number, since it uses less digits than its factorization.

612464644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557 (or 555 counting only the distinct ones).

The product of its digits is 110592, while the sum is 37.

The square root of 612464644 is about 24748.0230321535. The cubic root of 612464644 is about 849.2332850882.

The spelling of 612464644 in words is "six hundred twelve million, four hundred sixty-four thousand, six hundred forty-four".