307532340 has 36 divisors (see below), whose sum is σ = 932848644. Its totient is φ = 82008576.

The previous prime is 307532321. The next prime is 307532413. The reversal of 307532340 is 43235703.

It can be written as a sum of positive squares in 2 ways, for example, as 85045284 + 222487056 = 9222^2 + 14916^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×307532340² = 189152280291751200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 854077 + ... + 854436.

Almost surely, 2^307532340 is an apocalyptic number.

307532340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

307532340 is an abundant number, since it is smaller than the sum of its proper divisors (625316304).

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

307532340 is a wasteful number, since it uses less digits than its factorization.

307532340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1708528 (or 1708523 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 27.

The square root of 307532340 is about 17536.6000125452. The cubic root of 307532340 is about 674.9893660876.

The spelling of 307532340 in words is "three hundred seven million, five hundred thirty-two thousand, three hundred forty".