305389494 has 32 divisors (see below), whose sum is σ = 700538880. Its totient is φ = 98512200.

The previous prime is 305389493. The next prime is 305389499. The reversal of 305389494 is 494983503.

It is a happy number.

305389494 is a `hidden beast` number, since 30 + 53 + 89 + 494 = 666.

305389494 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305389493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89542 + ... + 92889.

It is an arithmetic number, because the mean of its divisors is an integer number (21891840).

Almost surely, 2^305389494 is an apocalyptic number.

305389494 is an abundant number, since it is smaller than the sum of its proper divisors (395149386).

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

305389494 is a wasteful number, since it uses less digits than its factorization.

305389494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182473 (or 182467 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 305389494 is about 17475.3968195289. The cubic root of 305389494 is about 673.4179641252.

The spelling of 305389494 in words is "three hundred five million, three hundred eighty-nine thousand, four hundred ninety-four".