623790380 has 24 divisors (see below), whose sum is σ = 1328412960. Its totient is φ = 246001280.

The previous prime is 623790371. The next prime is 623790389. The reversal of 623790380 is 83097326.

It is an interprime number because it is at equal distance from previous prime (623790371) and next prime (623790389).

It is a super-2 number, since 2×623790380² = 778228876361088800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (623790389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218225 + ... + 221064.

It is an arithmetic number, because the mean of its divisors is an integer number (55350540).

Almost surely, 2^623790380 is an apocalyptic number.

It is an amenable number.

623790380 is an abundant number, since it is smaller than the sum of its proper divisors (704622580).

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

623790380 is a wasteful number, since it uses less digits than its factorization.

623790380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439369 (or 439367 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 623790380 is about 24975.7958832146. The cubic root of 623790380 is about 854.4360381535.

The spelling of 623790380 in words is "six hundred twenty-three million, seven hundred ninety thousand, three hundred eighty".