349978130 has 32 divisors (see below), whose sum is σ = 638487360. Its totient is φ = 138107200.

The previous prime is 349978117. The next prime is 349978163. The reversal of 349978130 is 31879943.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 422777 + ... + 423603.

It is an arithmetic number, because the mean of its divisors is an integer number (19952730).

Almost surely, 2^349978130 is an apocalyptic number.

349978130 is a deficient number, since it is larger than the sum of its proper divisors (288509230).

349978130 is a wasteful number, since it uses less digits than its factorization.

349978130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 349978130 is about 18707.7024244026. The cubic root of 349978130 is about 704.7151943842.

The spelling of 349978130 in words is "three hundred forty-nine million, nine hundred seventy-eight thousand, one hundred thirty".