307232040 has 64 divisors (see below), whose sum is σ = 927936000. Its totient is φ = 81373952.

The previous prime is 307232039. The next prime is 307232059. The reversal of 307232040 is 40232703.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 307231998 and 307232016.

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, 9289 + ... + 26471.

It is an arithmetic number, because the mean of its divisors is an integer number (14499000).

Almost surely, 2^307232040 is an apocalyptic number.

307232040 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 307232040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (463968000).

307232040 is an abundant number, since it is smaller than the sum of its proper divisors (620703960).

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

307232040 is a wasteful number, since it uses less digits than its factorization.

307232040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17346 (or 17342 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 307232040 is about 17528.0358283522. The cubic root of 307232040 is about 674.7695893969.

Adding to 307232040 its reverse (40232703), we get a palindrome (347464743).

The spelling of 307232040 in words is "three hundred seven million, two hundred thirty-two thousand, forty".