340687385 has 16 divisors (see below), whose sum is σ = 449055360. Its totient is φ = 246977280.

The previous prime is 340687357. The next prime is 340687397. The reversal of 340687385 is 583786043.

It is not a de Polignac number, because 340687385 - 2¹⁰ = 340686361 is a prime.

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, 75776 + ... + 80145.

It is an arithmetic number, because the mean of its divisors is an integer number (28065960).

Almost surely, 2^340687385 is an apocalyptic number.

It is an amenable number.

340687385 is a deficient number, since it is larger than the sum of its proper divisors (108367975).

340687385 is a wasteful number, since it uses less digits than its factorization.

340687385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155968.

The product of its (nonzero) digits is 483840, while the sum is 44.

The square root of 340687385 is about 18457.7188460546. The cubic root of 340687385 is about 698.4232435252.

The spelling of 340687385 in words is "three hundred forty million, six hundred eighty-seven thousand, three hundred eighty-five".