623080290 has 32 divisors (see below), whose sum is σ = 1709020800. Its totient is φ = 142418304.

The previous prime is 623080261. The next prime is 623080313. The reversal of 623080290 is 92080326.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1483315 + ... + 1483734.

It is an arithmetic number, because the mean of its divisors is an integer number (53406900).

Almost surely, 2^623080290 is an apocalyptic number.

623080290 is an abundant number, since it is smaller than the sum of its proper divisors (1085940510).

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

623080290 is a wasteful number, since it uses less digits than its factorization.

623080290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2967066.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 623080290 is about 24961.5762723431. The cubic root of 623080290 is about 854.1117001102. Note that the first 3 decimals are identical.

The spelling of 623080290 in words is "six hundred twenty-three million, eighty thousand, two hundred ninety".