612753380 has 12 divisors (see below), whose sum is σ = 1286782140. Its totient is φ = 245101344.

The previous prime is 612753353. The next prime is 612753413. The reversal of 612753380 is 83357216.

It can be written as a sum of positive squares in 2 ways, for example, as 486820096 + 125933284 = 22064^2 + 11222^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 612753380.

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, 15318815 + ... + 15318854.

It is an arithmetic number, because the mean of its divisors is an integer number (107231845).

Almost surely, 2^612753380 is an apocalyptic number.

It is an amenable number.

612753380 is an abundant number, since it is smaller than the sum of its proper divisors (674028760).

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

612753380 is a wasteful number, since it uses less digits than its factorization.

612753380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30637678 (or 30637676 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 612753380 is about 24753.8558612593. The cubic root of 612753380 is about 849.3667163003.

The spelling of 612753380 in words is "six hundred twelve million, seven hundred fifty-three thousand, three hundred eighty".