3351731728 has 40 divisors (see below), whose sum is σ = 6688099712. Its totient is φ = 1626023808.

The previous prime is 3351731699. The next prime is 3351731729. The reversal of 3351731728 is 8271371533.

3351731728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3351731728² = 22468211152963731968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3351731729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209551 + ... + 224977.

Almost surely, 2^3351731728 is an apocalyptic number.

It is an amenable number.

3351731728 is a deficient number, since it is larger than the sum of its proper divisors (3336367984).

3351731728 is a wasteful number, since it uses less digits than its factorization.

3351731728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15839 (or 15833 counting only the distinct ones).

The product of its digits is 105840, while the sum is 40.

The square root of 3351731728 is about 57894.1424325467. The cubic root of 3351731728 is about 1496.5448962083.

The spelling of 3351731728 in words is "three billion, three hundred fifty-one million, seven hundred thirty-one thousand, seven hundred twenty-eight".