340557957 has 48 divisors (see below), whose sum is σ = 552015360. Its totient is φ = 201056256.

The previous prime is 340557947. The next prime is 340557989. The reversal of 340557957 is 759755043.

340557957 is a `hidden beast` number, since 3 + 4 + 0 + 557 + 95 + 7 = 666.

It is not a de Polignac number, because 340557957 - 2⁷ = 340557829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340557907) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 560748 + ... + 561354.

It is an arithmetic number, because the mean of its divisors is an integer number (11500320).

Almost surely, 2^340557957 is an apocalyptic number.

It is an amenable number.

340557957 is a deficient number, since it is larger than the sum of its proper divisors (211457403).

340557957 is a wasteful number, since it uses less digits than its factorization.

340557957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842 (or 839 counting only the distinct ones).

The product of its (nonzero) digits is 661500, while the sum is 45.

The square root of 340557957 is about 18454.2124459431. The cubic root of 340557957 is about 698.3347880700.

The spelling of 340557957 in words is "three hundred forty million, five hundred fifty-seven thousand, nine hundred fifty-seven".