306380442 has 16 divisors (see below), whose sum is σ = 617440032. Its totient is φ = 101346960.

The previous prime is 306380429. The next prime is 306380449. The reversal of 306380442 is 244083603.

It is not an unprimeable number, because it can be changed into a prime (306380449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194113 + ... + 195684.

It is an arithmetic number, because the mean of its divisors is an integer number (38590002).

Almost surely, 2^306380442 is an apocalyptic number.

306380442 is an abundant number, since it is smaller than the sum of its proper divisors (311059590).

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

306380442 is a wasteful number, since it uses less digits than its factorization.

306380442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389933.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 306380442 is about 17503.7265175162. The cubic root of 306380442 is about 674.1455614021.

The spelling of 306380442 in words is "three hundred six million, three hundred eighty thousand, four hundred forty-two".