612540232 has 16 divisors (see below), whose sum is σ = 1198448640. Its totient is φ = 292953936.

The previous prime is 612540211. The next prime is 612540251. The reversal of 612540232 is 232045216.

It is a super-2 number, since 2×612540232² = 750411071637227648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 612540197 and 612540206.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1664328 + ... + 1664695.

It is an arithmetic number, because the mean of its divisors is an integer number (74903040).

Almost surely, 2^612540232 is an apocalyptic number.

It is an amenable number.

612540232 is a deficient number, since it is larger than the sum of its proper divisors (585908408).

612540232 is a wasteful number, since it uses less digits than its factorization.

612540232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3329052 (or 3329048 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 612540232 is about 24749.5501373257. The cubic root of 612540232 is about 849.2682200055.

Adding to 612540232 its reverse (232045216), we get a palindrome (844585448).

The spelling of 612540232 in words is "six hundred twelve million, five hundred forty thousand, two hundred thirty-two".