349069518 has 24 divisors (see below), whose sum is σ = 864362928. Its totient is φ = 99734112.

The previous prime is 349069493. The next prime is 349069519. The reversal of 349069518 is 815960943.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349069519) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1385071 + ... + 1385322.

It is an arithmetic number, because the mean of its divisors is an integer number (36015122).

Almost surely, 2^349069518 is an apocalyptic number.

349069518 is an abundant number, since it is smaller than the sum of its proper divisors (515293410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

349069518 is a wasteful number, since it uses less digits than its factorization.

349069518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2770408 (or 2770405 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 349069518 is about 18683.4022062364. The cubic root of 349069518 is about 704.1048061402.

The spelling of 349069518 in words is "three hundred forty-nine million, sixty-nine thousand, five hundred eighteen".