3609972840 has 64 divisors (see below), whose sum is σ = 10935100800. Its totient is φ = 953309952.

The previous prime is 3609972823. The next prime is 3609972857. The reversal of 3609972840 is 482799063.

3609972840 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 is an interprime number because it is at equal distance from previous prime (3609972823) and next prime (3609972857).

It is a self number, because there is not a number n which added to its sum of digits gives 3609972840.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133675 + ... + 158394.

It is an arithmetic number, because the mean of its divisors is an integer number (170860950).

Almost surely, 2^3609972840 is an apocalyptic number.

3609972840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3609972840 is an abundant number, since it is smaller than the sum of its proper divisors (7325127960).

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

3609972840 is a wasteful number, since it uses less digits than its factorization.

3609972840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292186 (or 292182 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 48.

The square root of 3609972840 is about 60083.0495231392. The cubic root of 3609972840 is about 1534.0327972377.

The spelling of 3609972840 in words is "three billion, six hundred nine million, nine hundred seventy-two thousand, eight hundred forty".