349599957 has 48 divisors (see below), whose sum is σ = 556994880. Its totient is φ = 194412288.

The previous prime is 349599947. The next prime is 349599979. The reversal of 349599957 is 759995943.

It is not a de Polignac number, because 349599957 - 2⁴ = 349599941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 349599957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349599937) 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, 1500313 + ... + 1500545.

It is an arithmetic number, because the mean of its divisors is an integer number (11604060).

Almost surely, 2^349599957 is an apocalyptic number.

It is an amenable number.

349599957 is a deficient number, since it is larger than the sum of its proper divisors (207394923).

349599957 is a wasteful number, since it uses less digits than its factorization.

349599957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482 (or 475 counting only the distinct ones).

The product of its digits is 13778100, while the sum is 60.

The square root of 349599957 is about 18697.5922781518. The cubic root of 349599957 is about 704.4612734623.

The spelling of 349599957 in words is "three hundred forty-nine million, five hundred ninety-nine thousand, nine hundred fifty-seven".