612238020 has 48 divisors (see below), whose sum is σ = 1725796800. Its totient is φ = 162165376.

The previous prime is 612238013. The next prime is 612238061. The reversal of 612238020 is 20832216.

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, 25302 + ... + 43181.

It is an arithmetic number, because the mean of its divisors is an integer number (35954100).

Almost surely, 2^612238020 is an apocalyptic number.

612238020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

612238020 is an abundant number, since it is smaller than the sum of its proper divisors (1113558780).

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

612238020 is a wasteful number, since it uses less digits than its factorization.

612238020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68644 (or 68642 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 612238020 is about 24743.4439801738. The cubic root of 612238020 is about 849.1285278105.

The spelling of 612238020 in words is "six hundred twelve million, two hundred thirty-eight thousand, twenty".