623145324 has 24 divisors (see below), whose sum is σ = 1457754480. Its totient is φ = 207179584.

The previous prime is 623145311. The next prime is 623145329. The reversal of 623145324 is 423541326.

It is a junction number, because it is equal to n+sod(n) for n = 623145291 and 623145300.

It is not an unprimeable number, because it can be changed into a prime (623145329) 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, 62079 + ... + 71414.

It is an arithmetic number, because the mean of its divisors is an integer number (60739770).

Almost surely, 2^623145324 is an apocalyptic number.

It is an amenable number.

623145324 is an abundant number, since it is smaller than the sum of its proper divisors (834609156).

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

623145324 is a wasteful number, since it uses less digits than its factorization.

623145324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133889 (or 133887 counting only the distinct ones).

The product of its digits is 17280, while the sum is 30.

The square root of 623145324 is about 24962.8789205091. The cubic root of 623145324 is about 854.1414150436.

The spelling of 623145324 in words is "six hundred twenty-three million, one hundred forty-five thousand, three hundred twenty-four".