306054140 has 24 divisors (see below), whose sum is σ = 734530272. Its totient is φ = 104932800.

The previous prime is 306054131. The next prime is 306054143. The reversal of 306054140 is 41450603.

It is a happy number.

306054140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×306054140² = 187338273222279200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306054143) 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, 1092911 + ... + 1093190.

It is an arithmetic number, because the mean of its divisors is an integer number (30605428).

Almost surely, 2^306054140 is an apocalyptic number.

It is an amenable number.

306054140 is an abundant number, since it is smaller than the sum of its proper divisors (428476132).

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

306054140 is a wasteful number, since it uses less digits than its factorization.

306054140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186117 (or 2186115 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 306054140 is about 17494.4031049933. The cubic root of 306054140 is about 673.9061497058.

The spelling of 306054140 in words is "three hundred six million, fifty-four thousand, one hundred forty".