3213391248 has 30 divisors (see below), whose sum is σ = 8993032854. Its totient is φ = 1071130368.

The previous prime is 3213391243. The next prime is 3213391261. The reversal of 3213391248 is 8421933123.

3213391248 is a `hidden beast` number, since 3 + 21 + 3 + 391 + 248 = 666.

3213391248 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3148556544 + 64834704 = 56112^2 + 8052^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (3213391243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11157465 + ... + 11157752.

Almost surely, 2^3213391248 is an apocalyptic number.

It is an amenable number.

3213391248 is an abundant number, since it is smaller than the sum of its proper divisors (5779641606).

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

3213391248 is a wasteful number, since it uses less digits than its factorization.

3213391248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22315231 (or 22315222 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 3213391248 is about 56686.7819513509. The cubic root of 3213391248 is about 1475.6653128822.

The spelling of 3213391248 in words is "three billion, two hundred thirteen million, three hundred ninety-one thousand, two hundred forty-eight".