349200856 has 32 divisors (see below), whose sum is σ = 664833600. Its totient is φ = 171924480.

The previous prime is 349200853. The next prime is 349200869. The reversal of 349200856 is 658002943.

It is a super-2 number, since 2×349200856² = 243882475662265472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349200853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424926 + ... + 425746.

It is an arithmetic number, because the mean of its divisors is an integer number (20776050).

Almost surely, 2^349200856 is an apocalyptic number.

It is an amenable number.

349200856 is a deficient number, since it is larger than the sum of its proper divisors (315632744).

349200856 is a wasteful number, since it uses less digits than its factorization.

349200856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579 (or 1575 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 349200856 is about 18686.9167066159. The cubic root of 349200856 is about 704.1931019444.

The spelling of 349200856 in words is "three hundred forty-nine million, two hundred thousand, eight hundred fifty-six".