3247156990 has 128 divisors (see below), whose sum is σ = 7527168000. Its totient is φ = 999694080.

The previous prime is 3247156967. The next prime is 3247157003. The reversal of 3247156990 is 996517423.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3247156990.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3357487 + ... + 3358453.

It is an arithmetic number, because the mean of its divisors is an integer number (58806000).

Almost surely, 2^3247156990 is an apocalyptic number.

3247156990 is an abundant number, since it is smaller than the sum of its proper divisors (4280011010).

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

3247156990 is a wasteful number, since it uses less digits than its factorization.

3247156990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095 (or 1081 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 3247156990 is about 56983.8309522973. The cubic root of 3247156990 is about 1480.8159899454.

It can be divided in two parts, 324715 and 6990, that added together give a triangular number (331705 = T₈₁₄).

The spelling of 3247156990 in words is "three billion, two hundred forty-seven million, one hundred fifty-six thousand, nine hundred ninety".