623920344 has 32 divisors (see below), whose sum is σ = 1601959920. Its totient is φ = 202352256.

The previous prime is 623920343. The next prime is 623920387. The reversal of 623920344 is 443029326.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623920343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350419 + ... + 352194.

Almost surely, 2^623920344 is an apocalyptic number.

It is an amenable number.

623920344 is an abundant number, since it is smaller than the sum of its proper divisors (978039576).

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

623920344 is a wasteful number, since it uses less digits than its factorization.

623920344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702659 (or 702655 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 623920344 is about 24978.3975466802. The cubic root of 623920344 is about 854.4953733713.

The spelling of 623920344 in words is "six hundred twenty-three million, nine hundred twenty thousand, three hundred forty-four".