72900750 has 64 divisors (see below), whose sum is σ = 195983424. Its totient is φ = 17942400.

The previous prime is 72900733. The next prime is 72900769. The reversal of 72900750 is 5700927.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6012 + ... + 13488.

It is an arithmetic number, because the mean of its divisors is an integer number (3062241).

Almost surely, 2^72900750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72900750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97991712).

72900750 is an abundant number, since it is smaller than the sum of its proper divisors (123082674).

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

72900750 is a wasteful number, since it uses less digits than its factorization.

72900750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7510 (or 7500 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 30.

The square root of 72900750 is about 8538.1936028647. The cubic root of 72900750 is about 417.7444276094.

The spelling of 72900750 in words is "seventy-two million, nine hundred thousand, seven hundred fifty".