612635740 has 12 divisors (see below), whose sum is σ = 1286535096. Its totient is φ = 245054288.

The previous prime is 612635729. The next prime is 612635743. The reversal of 612635740 is 47536216.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 612635696 and 612635705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612635743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15315874 + ... + 15315913.

It is an arithmetic number, because the mean of its divisors is an integer number (107211258).

Almost surely, 2^612635740 is an apocalyptic number.

It is an amenable number.

612635740 is an abundant number, since it is smaller than the sum of its proper divisors (673899356).

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

612635740 is a wasteful number, since it uses less digits than its factorization.

612635740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30631796 (or 30631794 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 612635740 is about 24751.4795517359. The cubic root of 612635740 is about 849.3123573479.

The spelling of 612635740 in words is "six hundred twelve million, six hundred thirty-five thousand, seven hundred forty".