623045000 has 60 divisors (see below), whose sum is σ = 1463941545. Its totient is φ = 248512000.

The previous prime is 623044991. The next prime is 623045011. The reversal of 623045000 is 540326.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 8 ways, for example, as 84897796 + 538147204 = 9214^2 + 23198^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=17650.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1764824 + ... + 1765176.

Almost surely, 2^623045000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 623045000

623045000 is an abundant number, since it is smaller than the sum of its proper divisors (840896545).

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

623045000 is an frugal number, since it uses more digits than its factorization.

623045000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732 (or 360 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 623045000 is about 24960.8693758851. The cubic root of 623045000 is about 854.0955747561.

Adding to 623045000 its reverse (540326), we get a palindrome (623585326).

The spelling of 623045000 in words is "six hundred twenty-three million, forty-five thousand".