307227840 has 112 divisors (see below), whose sum is σ = 988039680. Its totient is φ = 80870400.

The previous prime is 307227839. The next prime is 307227857. The reversal of 307227840 is 48722703.

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, 73815 + ... + 77865.

Almost surely, 2^307227840 is an apocalyptic number.

307227840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 307227840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (494019840).

307227840 is an abundant number, since it is smaller than the sum of its proper divisors (680811840).

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

307227840 is a wasteful number, since it uses less digits than its factorization.

307227840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4150 (or 4140 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 307227840 is about 17527.9160198810. The cubic root of 307227840 is about 674.7665145818.

The spelling of 307227840 in words is "three hundred seven million, two hundred twenty-seven thousand, eight hundred forty".