349351624 has 8 divisors (see below), whose sum is σ = 655034310. Its totient is φ = 174675808.

The previous prime is 349351621. The next prime is 349351631. The reversal of 349351624 is 426153943.

It can be written as a sum of positive squares in only one way, i.e., 215208900 + 134142724 = 14670^2 + 11582^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (349351621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21834469 + ... + 21834484.

Almost surely, 2^349351624 is an apocalyptic number.

It is an amenable number.

349351624 is a deficient number, since it is larger than the sum of its proper divisors (305682686).

349351624 is a wasteful number, since it uses less digits than its factorization.

349351624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43668959 (or 43668955 counting only the distinct ones).

The product of its digits is 77760, while the sum is 37.

The square root of 349351624 is about 18690.9503236192. The cubic root of 349351624 is about 704.2944328430.

The spelling of 349351624 in words is "three hundred forty-nine million, three hundred fifty-one thousand, six hundred twenty-four".