3920928436 has 12 divisors (see below), whose sum is σ = 6862079812. Its totient is φ = 1960334208.

The previous prime is 3920928421. The next prime is 3920928439. The reversal of 3920928436 is 6348290293.

It can be written as a sum of positive squares in 2 ways, for example, as 1221502500 + 2699425936 = 34950^2 + 51956^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3920928439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74476 + ... + 115708.

Almost surely, 2^3920928436 is an apocalyptic number.

It is an amenable number.

3920928436 is a deficient number, since it is larger than the sum of its proper divisors (2941151376).

3920928436 is a wasteful number, since it uses less digits than its factorization.

3920928436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65010 (or 65008 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 46.

The square root of 3920928436 is about 62617.3173810568. The cubic root of 3920928436 is about 1576.8715048276.

The spelling of 3920928436 in words is "three billion, nine hundred twenty million, nine hundred twenty-eight thousand, four hundred thirty-six".