612347140 has 24 divisors (see below), whose sum is σ = 1361572632. Its totient is φ = 230530560.

The previous prime is 612347111. The next prime is 612347171. The reversal of 612347140 is 41743216.

612347140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 312087556 + 300259584 = 17666^2 + 17328^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 612347099 and 612347108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 900171 + ... + 900850.

It is an arithmetic number, because the mean of its divisors is an integer number (56732193).

Almost surely, 2^612347140 is an apocalyptic number.

It is an amenable number.

612347140 is an abundant number, since it is smaller than the sum of its proper divisors (749225492).

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

612347140 is a wasteful number, since it uses less digits than its factorization.

612347140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801047 (or 1801045 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 612347140 is about 24745.6489104650. The cubic root of 612347140 is about 849.1789719176.

The spelling of 612347140 in words is "six hundred twelve million, three hundred forty-seven thousand, one hundred forty".