307742445 has 24 divisors (see below), whose sum is σ = 535964832. Its totient is φ = 163346400.

The previous prime is 307742441. The next prime is 307742459. The reversal of 307742445 is 544247703.

It is not a de Polignac number, because 307742445 - 2² = 307742441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307742441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6711 + ... + 25700.

It is an arithmetic number, because the mean of its divisors is an integer number (22331868).

Almost surely, 2^307742445 is an apocalyptic number.

It is an amenable number.

307742445 is a deficient number, since it is larger than the sum of its proper divisors (228222387).

307742445 is a wasteful number, since it uses less digits than its factorization.

307742445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32633 (or 32630 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 36.

The square root of 307742445 is about 17542.5894610801. The cubic root of 307742445 is about 675.1430478721.

The spelling of 307742445 in words is "three hundred seven million, seven hundred forty-two thousand, four hundred forty-five".