307682040 has 128 divisors (see below), whose sum is σ = 987033600. Its totient is φ = 76538880.

The previous prime is 307682033. The next prime is 307682077. The reversal of 307682040 is 40286703.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 307681989 and 307682007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111801 + ... + 114519.

It is an arithmetic number, because the mean of its divisors is an integer number (7711200).

Almost surely, 2^307682040 is an apocalyptic number.

307682040 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 307682040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (493516800).

307682040 is an abundant number, since it is smaller than the sum of its proper divisors (679351560).

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

307682040 is a wasteful number, since it uses less digits than its factorization.

307682040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2797 (or 2793 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 307682040 is about 17540.8677094379. The cubic root of 307682040 is about 675.0988716623.

The spelling of 307682040 in words is "three hundred seven million, six hundred eighty-two thousand, forty".