623213740 has 24 divisors (see below), whose sum is σ = 1310278032. Its totient is φ = 248994240.

The previous prime is 623213687. The next prime is 623213743. The reversal of 623213740 is 47312326.

623213740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 623213699 and 623213708.

It is not an unprimeable number, because it can be changed into a prime (623213743) 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, 226 + ... + 35305.

It is an arithmetic number, because the mean of its divisors is an integer number (54594918).

Almost surely, 2^623213740 is an apocalyptic number.

It is an amenable number.

623213740 is an abundant number, since it is smaller than the sum of its proper divisors (687064292).

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

623213740 is a wasteful number, since it uses less digits than its factorization.

623213740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36417 (or 36415 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 623213740 is about 24964.2492376598. The cubic root of 623213740 is about 854.1726730280.

The spelling of 623213740 in words is "six hundred twenty-three million, two hundred thirteen thousand, seven hundred forty".