3672391680 has 360 divisors, whose sum is σ = 13525431192. Its totient is φ = 918552576.

The previous prime is 3672391643. The next prime is 3672391691. The reversal of 3672391680 is 861932763.

It can be written as a sum of positive squares in 4 ways, for example, as 1688223744 + 1984167936 = 41088^2 + 44544^2 .

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12533614 + ... + 12533906.

Almost surely, 2^3672391680 is an apocalyptic number.

3672391680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3672391680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6762715596).

3672391680 is an abundant number, since it is smaller than the sum of its proper divisors (9853039512).

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

3672391680 is a wasteful number, since it uses less digits than its factorization.

3672391680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 320 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 3672391680 is about 60600.2613855749. The cubic root of 3672391680 is about 1542.8238064520.

The spelling of 3672391680 in words is "three billion, six hundred seventy-two million, three hundred ninety-one thousand, six hundred eighty".