307140 has 24 divisors (see below), whose sum is σ = 860160. Its totient is φ = 81888.

The previous prime is 307129. The next prime is 307147. The reversal of 307140 is 41703.

307140 = T₅₄ + T₅₅ + ... + T₁₂₅.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 307140.

It is not an unprimeable number, because it can be changed into a prime (307147) by changing a digit.

307140 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2500 + ... + 2619.

It is an arithmetic number, because the mean of its divisors is an integer number (35840).

2³⁰⁷¹⁴⁰ is an apocalyptic number.

307140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

307140 is an abundant number, since it is smaller than the sum of its proper divisors (553020).

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

307140 is a wasteful number, since it uses less digits than its factorization.

307140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5131 (or 5129 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 307140 is about 554.2021291911. The cubic root of 307140 is about 67.4702200596.

Adding to 307140 its reverse (41703), we get a palindrome (348843).

The spelling of 307140 in words is "three hundred seven thousand, one hundred forty", and thus it is an iban number.