306325140 has 48 divisors (see below), whose sum is σ = 935686080. Its totient is φ = 74260480.

The previous prime is 306325081. The next prime is 306325171. The reversal of 306325140 is 41523603.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 306325140.

It is a congruent number.

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, 231405 + ... + 232724.

It is an arithmetic number, because the mean of its divisors is an integer number (19493460).

Almost surely, 2^306325140 is an apocalyptic number.

306325140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

306325140 is an abundant number, since it is smaller than the sum of its proper divisors (629360940).

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

306325140 is a wasteful number, since it uses less digits than its factorization.

306325140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464152 (or 464150 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 306325140 is about 17502.1467254734. The cubic root of 306325140 is about 674.1049976279.

Adding to 306325140 its reverse (41523603), we get a palindrome (347848743).

It can be divided in two parts, 3063 and 25140, that added together give a triangular number (28203 = T₂₃₇).

The spelling of 306325140 in words is "three hundred six million, three hundred twenty-five thousand, one hundred forty".