3720997500 has 480 divisors, whose sum is σ = 12923463168. Its totient is φ = 823680000.

The previous prime is 3720997493. The next prime is 3720997513. The reversal of 3720997500 is 57990273.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 70207474 + ... + 70207526.

Almost surely, 2^3720997500 is an apocalyptic number.

3720997500 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 3720997500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6461731584).

3720997500 is an abundant number, since it is smaller than the sum of its proper divisors (9202465668).

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

3720997500 is a wasteful number, since it uses less digits than its factorization.

3720997500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 119070, while the sum is 42.

The square root of 3720997500 is about 60999.9795081933. The cubic root of 3720997500 is about 1549.6006602175.

The spelling of 3720997500 in words is "three billion, seven hundred twenty million, nine hundred ninety-seven thousand, five hundred".