307430490 has 16 divisors (see below), whose sum is σ = 737833248. Its totient is φ = 81981456.

The previous prime is 307430477. The next prime is 307430527. The reversal of 307430490 is 94034703.

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: 10247683 = 307430490 / (3 + 0 + 7 + 4 + 3 + 0 + 4 + 9 + 0).

It is an unprimeable number.

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, 5123812 + ... + 5123871.

It is an arithmetic number, because the mean of its divisors is an integer number (46114578).

Almost surely, 2^307430490 is an apocalyptic number.

307430490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

307430490 is an abundant number, since it is smaller than the sum of its proper divisors (430402758).

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

307430490 is a wasteful number, since it uses less digits than its factorization.

307430490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10247693.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 307430490 is about 17533.6958454286. The cubic root of 307430490 is about 674.9148424806.

The spelling of 307430490 in words is "three hundred seven million, four hundred thirty thousand, four hundred ninety".