306492040 has 64 divisors (see below), whose sum is σ = 749376000. Its totient is φ = 112389120.

The previous prime is 306492037. The next prime is 306492083. The reversal of 306492040 is 40294603.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17056 + ... + 30064.

It is an arithmetic number, because the mean of its divisors is an integer number (11709000).

Almost surely, 2^306492040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 306492040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374688000).

306492040 is an abundant number, since it is smaller than the sum of its proper divisors (442883960).

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

306492040 is a wasteful number, since it uses less digits than its factorization.

306492040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13070 (or 13066 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 306492040 is about 17506.9140627353. The cubic root of 306492040 is about 674.2274031838.

The spelling of 306492040 in words is "three hundred six million, four hundred ninety-two thousand, forty".