373223521 has 8 divisors (see below), whose sum is σ = 410889600. Its totient is φ = 336180240.

The previous prime is 373223497. The next prime is 373223537. The reversal of 373223521 is 125322373.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 373223521 - 2⁵ = 373223489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 373223521.

It is not an unprimeable number, because it can be changed into a prime (373223561) 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, 154441 + ... + 156838.

It is an arithmetic number, because the mean of its divisors is an integer number (51361200).

Almost surely, 2^373223521 is an apocalyptic number.

It is an amenable number.

373223521 is a deficient number, since it is larger than the sum of its proper divisors (37666079).

373223521 is a wasteful number, since it uses less digits than its factorization.

373223521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311399.

The product of its digits is 7560, while the sum is 28.

The square root of 373223521 is about 19318.9937884974. The cubic root of 373223521 is about 719.9842595582.

Adding to 373223521 its reverse (125322373), we get a palindrome (498545894).

The spelling of 373223521 in words is "three hundred seventy-three million, two hundred twenty-three thousand, five hundred twenty-one".