373223661 has 16 divisors (see below), whose sum is σ = 528321600. Its totient is φ = 233549568.

The previous prime is 373223647. The next prime is 373223671. The reversal of 373223661 is 166322373.

It is not a de Polignac number, because 373223661 - 2¹⁹ = 372699373 is a prime.

It is a super-2 number, since 2×373223661² = 278591802260485842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (373223671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9675 + ... + 28983.

It is an arithmetic number, because the mean of its divisors is an integer number (33020100).

Almost surely, 2^373223661 is an apocalyptic number.

It is an amenable number.

373223661 is a deficient number, since it is larger than the sum of its proper divisors (155097939).

373223661 is a wasteful number, since it uses less digits than its factorization.

373223661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19708.

The product of its digits is 27216, while the sum is 33.

The square root of 373223661 is about 19318.9974118741. The cubic root of 373223661 is about 719.9843495827.

The spelling of 373223661 in words is "three hundred seventy-three million, two hundred twenty-three thousand, six hundred sixty-one".