623433740 has 24 divisors (see below), whose sum is σ = 1310686272. Its totient is φ = 249092480.

The previous prime is 623433721. The next prime is 623433743. The reversal of 623433740 is 47334326.

It is a junction number, because it is equal to n+sod(n) for n = 623433697 and 623433706.

It is not an unprimeable number, because it can be changed into a prime (623433743) 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, 1112 + ... + 35328.

It is an arithmetic number, because the mean of its divisors is an integer number (54611928).

Almost surely, 2^623433740 is an apocalyptic number.

It is an amenable number.

623433740 is an abundant number, since it is smaller than the sum of its proper divisors (687252532).

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

623433740 is a wasteful number, since it uses less digits than its factorization.

623433740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35137 (or 35135 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 32.

The square root of 623433740 is about 24968.6551500076. The cubic root of 623433740 is about 854.2731713900.

The spelling of 623433740 in words is "six hundred twenty-three million, four hundred thirty-three thousand, seven hundred forty".