3320648731 has 8 divisors (see below), whose sum is σ = 3520409984. Its totient is φ = 3126677760.

The previous prime is 3320648729. The next prime is 3320648767. The reversal of 3320648731 is 1378460233.

3320648731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3320648731 - 2¹ = 3320648729 is a prime.

It is a super-2 number, since 2×3320648731² = 22053415989383820722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3320648231) 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, 1446390 + ... + 1448683.

It is an arithmetic number, because the mean of its divisors is an integer number (440051248).

Almost surely, 2^3320648731 is an apocalyptic number.

3320648731 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3320648731 is a deficient number, since it is larger than the sum of its proper divisors (199761253).

3320648731 is a wasteful number, since it uses less digits than its factorization.

3320648731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2895141.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 3320648731 is about 57625.0703340135. The cubic root of 3320648731 is about 1491.9043456742.

The spelling of 3320648731 in words is "three billion, three hundred twenty million, six hundred forty-eight thousand, seven hundred thirty-one".