307418940 has 144 divisors (see below), whose sum is σ = 989264640. Its totient is φ = 77137920.

The previous prime is 307418927. The next prime is 307418953. The reversal of 307418940 is 49814703.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (307418927) and next prime (307418953).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 307418895 and 307418904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 205716 + ... + 207204.

Almost surely, 2^307418940 is an apocalyptic number.

307418940 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 307418940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (494632320).

307418940 is an abundant number, since it is smaller than the sum of its proper divisors (681845700).

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

307418940 is a wasteful number, since it uses less digits than its factorization.

307418940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572 (or 1567 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 307418940 is about 17533.3664765213. The cubic root of 307418940 is about 674.9063903109.

The spelling of 307418940 in words is "three hundred seven million, four hundred eighteen thousand, nine hundred forty".