75712290 has 16 divisors (see below), whose sum is σ = 181709568. Its totient is φ = 20189936.

The previous prime is 75712213. The next prime is 75712309. The reversal of 75712290 is 9221757.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1261842 + ... + 1261901.

It is an arithmetic number, because the mean of its divisors is an integer number (11356848).

Almost surely, 2^75712290 is an apocalyptic number.

75712290 is an abundant number, since it is smaller than the sum of its proper divisors (105997278).

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

75712290 is a wasteful number, since it uses less digits than its factorization.

75712290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523753.

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 75712290 is about 8701.2809401835. The cubic root of 75712290 is about 423.0471698763.

The spelling of 75712290 in words is "seventy-five million, seven hundred twelve thousand, two hundred ninety".