307742336 has 64 divisors (see below), whose sum is σ = 674472960. Its totient is φ = 138700800.

The previous prime is 307742321. The next prime is 307742341. The reversal of 307742336 is 633247703.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 307742296 and 307742305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177956 + ... + 179676.

It is an arithmetic number, because the mean of its divisors is an integer number (10538640).

Almost surely, 2^307742336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 307742336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337236480).

307742336 is an abundant number, since it is smaller than the sum of its proper divisors (366730624).

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

307742336 is a wasteful number, since it uses less digits than its factorization.

307742336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1873 (or 1861 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 35.

The square root of 307742336 is about 17542.5863543549. The cubic root of 307742336 is about 675.1429681619.

The spelling of 307742336 in words is "three hundred seven million, seven hundred forty-two thousand, three hundred thirty-six".