307889130 has 32 divisors (see below), whose sum is σ = 743904000. Its totient is φ = 81551552.

The previous prime is 307889123. The next prime is 307889147. The reversal of 307889130 is 31988703.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 29970 + ... + 38909.

It is an arithmetic number, because the mean of its divisors is an integer number (23247000).

Almost surely, 2^307889130 is an apocalyptic number.

307889130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

307889130 is an abundant number, since it is smaller than the sum of its proper divisors (436014870).

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

307889130 is a wasteful number, since it uses less digits than its factorization.

307889130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69038.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 307889130 is about 17546.7697881975. The cubic root of 307889130 is about 675.2502994922.

It can be divided in two parts, 3078891 and 30, that added together give a triangular number (3078921 = T₂₄₈₁).

The spelling of 307889130 in words is "three hundred seven million, eight hundred eighty-nine thousand, one hundred thirty".