264430290 has 16 divisors (see below), whose sum is σ = 634632768. Its totient is φ = 70514736.

The previous prime is 264430259. The next prime is 264430337. The reversal of 264430290 is 92034462.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 8814343 = 264430290 / (2 + 6 + 4 + 4 + 3 + 0 + 2 + 9 + 0).

It is a Curzon number.

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, 4407142 + ... + 4407201.

It is an arithmetic number, because the mean of its divisors is an integer number (39664548).

Almost surely, 2^264430290 is an apocalyptic number.

264430290 is an abundant number, since it is smaller than the sum of its proper divisors (370202478).

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

264430290 is a wasteful number, since it uses less digits than its factorization.

264430290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8814353.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 264430290 is about 16261.3126776408. The cubic root of 264430290 is about 641.8552045812.

The spelling of 264430290 in words is "two hundred sixty-four million, four hundred thirty thousand, two hundred ninety".