75223390 has 32 divisors (see below), whose sum is σ = 152811360. Its totient is φ = 26409600.

The previous prime is 75223349. The next prime is 75223433. The reversal of 75223390 is 9332257.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8601 + ... + 14980.

It is an arithmetic number, because the mean of its divisors is an integer number (4775355).

Almost surely, 2^75223390 is an apocalyptic number.

75223390 is an abundant number, since it is smaller than the sum of its proper divisors (77587970).

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

75223390 is a wasteful number, since it uses less digits than its factorization.

75223390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23628.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 75223390 is about 8673.1418759294. The cubic root of 75223390 is about 422.1346163527.

It can be divided in two parts, 752 and 23390, that added together give a palindrome (24142).

The spelling of 75223390 in words is "seventy-five million, two hundred twenty-three thousand, three hundred ninety".