349638090 has 16 divisors (see below), whose sum is σ = 839131488. Its totient is φ = 93236816.

The previous prime is 349638089. The next prime is 349638131. The reversal of 349638090 is 90836943.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5827272 + ... + 5827331.

It is an arithmetic number, because the mean of its divisors is an integer number (52445718).

Almost surely, 2^349638090 is an apocalyptic number.

349638090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

349638090 is an abundant number, since it is smaller than the sum of its proper divisors (489493398).

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

349638090 is a wasteful number, since it uses less digits than its factorization.

349638090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11654613.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 349638090 is about 18698.6119805722. The cubic root of 349638090 is about 704.4868858273.

The spelling of 349638090 in words is "three hundred forty-nine million, six hundred thirty-eight thousand, ninety".