3453979720 has 32 divisors (see below), whose sum is σ = 7774684920. Its totient is φ = 1381017600.

The previous prime is 3453979703. The next prime is 3453979723. The reversal of 3453979720 is 279793543.

It can be written as a sum of positive squares in 4 ways, for example, as 3102267204 + 351712516 = 55698^2 + 18754^2 .

It is not an unprimeable number, because it can be changed into a prime (3453979723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87070 + ... + 120370.

Almost surely, 2^3453979720 is an apocalyptic number.

It is an amenable number.

3453979720 is an abundant number, since it is smaller than the sum of its proper divisors (4320705200).

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

3453979720 is a wasteful number, since it uses less digits than its factorization.

3453979720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35905 (or 35901 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 49.

The square root of 3453979720 is about 58770.5684845740. The cubic root of 3453979720 is about 1511.6105967433.

The spelling of 3453979720 in words is "three billion, four hundred fifty-three million, nine hundred seventy-nine thousand, seven hundred twenty".