3318045720 has 128 divisors (see below), whose sum is σ = 11497904640. Its totient is φ = 757053440.

The previous prime is 3318045671. The next prime is 3318045743. The reversal of 3318045720 is 275408133.

It is a super-2 number, since 2×3318045720² = 22018854800020636800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51492 + ... + 96371.

It is an arithmetic number, because the mean of its divisors is an integer number (89827380).

Almost surely, 2^3318045720 is an apocalyptic number.

3318045720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3318045720 is an abundant number, since it is smaller than the sum of its proper divisors (8179858920).

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

3318045720 is a wasteful number, since it uses less digits than its factorization.

3318045720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147905 (or 147901 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 3318045720 is about 57602.4801549378. The cubic root of 3318045720 is about 1491.5144159842.

The spelling of 3318045720 in words is "three billion, three hundred eighteen million, forty-five thousand, seven hundred twenty".