75090072 has 32 divisors (see below), whose sum is σ = 188179200. Its totient is φ = 24969504.

The previous prime is 75090061. The next prime is 75090079. The reversal of 75090072 is 27009057.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75090079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6973 + ... + 14099.

It is an arithmetic number, because the mean of its divisors is an integer number (5880600).

Almost surely, 2^75090072 is an apocalyptic number.

It is an amenable number.

75090072 is an abundant number, since it is smaller than the sum of its proper divisors (113089128).

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

75090072 is a wasteful number, since it uses less digits than its factorization.

75090072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7575 (or 7571 counting only the distinct ones).

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

The square root of 75090072 is about 8665.4527867850. The cubic root of 75090072 is about 421.8850865956.

The spelling of 75090072 in words is "seventy-five million, ninety thousand, seventy-two".