349158740 has 24 divisors (see below), whose sum is σ = 837981312. Its totient is φ = 119711520.

The previous prime is 349158739. The next prime is 349158779. The reversal of 349158740 is 47851943.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1246856 + ... + 1247135.

It is an arithmetic number, because the mean of its divisors is an integer number (34915888).

Almost surely, 2^349158740 is an apocalyptic number.

It is an amenable number.

349158740 is an abundant number, since it is smaller than the sum of its proper divisors (488822572).

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

349158740 is a wasteful number, since it uses less digits than its factorization.

349158740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494007 (or 2494005 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 349158740 is about 18685.7897879645. The cubic root of 349158740 is about 704.1647906458.

The spelling of 349158740 in words is "three hundred forty-nine million, one hundred fifty-eight thousand, seven hundred forty".