307157340 has 48 divisors (see below), whose sum is σ = 982904832. Its totient is φ = 70207296.

The previous prime is 307157339. The next prime is 307157369. The reversal of 307157340 is 43751703.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 307157298 and 307157307.

It is a congruent number.

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, 365244 + ... + 366083.

It is an arithmetic number, because the mean of its divisors is an integer number (20477184).

Almost surely, 2^307157340 is an apocalyptic number.

307157340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

307157340 is an abundant number, since it is smaller than the sum of its proper divisors (675747492).

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

307157340 is a wasteful number, since it uses less digits than its factorization.

307157340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731346 (or 731344 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 307157340 is about 17525.9048268556. The cubic root of 307157340 is about 674.7148974296.

The spelling of 307157340 in words is "three hundred seven million, one hundred fifty-seven thousand, three hundred forty".