623375136 has 48 divisors (see below), whose sum is σ = 1818180000. Its totient is φ = 207791424.

The previous prime is 623375113. The next prime is 623375143. The reversal of 623375136 is 631573326.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 623375136.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359886 + ... + 361613.

It is an arithmetic number, because the mean of its divisors is an integer number (37878750).

Almost surely, 2^623375136 is an apocalyptic number.

It is an amenable number.

623375136 is an abundant number, since it is smaller than the sum of its proper divisors (1194804864).

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

623375136 is a wasteful number, since it uses less digits than its factorization.

623375136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721518 (or 721504 counting only the distinct ones).

The product of its digits is 68040, while the sum is 36.

The square root of 623375136 is about 24967.4815710356. The cubic root of 623375136 is about 854.2464027641.

The spelling of 623375136 in words is "six hundred twenty-three million, three hundred seventy-five thousand, one hundred thirty-six".