307242407 has 6 divisors (see below), whose sum is σ = 324264528. Its totient is φ = 291071412.

The previous prime is 307242401. The next prime is 307242427. The reversal of 307242407 is 704242703.

It is not a de Polignac number, because 307242407 - 2⁴ = 307242391 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 307242407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307242401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 425183 + ... + 425904.

It is an arithmetic number, because the mean of its divisors is an integer number (54044088).

Almost surely, 2^307242407 is an apocalyptic number.

307242407 is a deficient number, since it is larger than the sum of its proper divisors (17022121).

307242407 is an equidigital number, since it uses as much as digits as its factorization.

307242407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851125 (or 851106 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 307242407 is about 17528.3315520902. The cubic root of 307242407 is about 674.7771789457. Note that the first 3 decimals are identical.

The spelling of 307242407 in words is "three hundred seven million, two hundred forty-two thousand, four hundred seven".