349091898 has 32 divisors (see below), whose sum is σ = 711597312. Its totient is φ = 114139200.

The previous prime is 349091891. The next prime is 349091903. The reversal of 349091898 is 898190943.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 349091898.

It is not an unprimeable number, because it can be changed into a prime (349091891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156640 + ... + 158852.

It is an arithmetic number, because the mean of its divisors is an integer number (22237416).

Almost surely, 2^349091898 is an apocalyptic number.

349091898 is an abundant number, since it is smaller than the sum of its proper divisors (362505414).

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

349091898 is a wasteful number, since it uses less digits than its factorization.

349091898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2710.

The product of its (nonzero) digits is 559872, while the sum is 51.

The square root of 349091898 is about 18684.0011239563. The cubic root of 349091898 is about 704.1198533137.

The spelling of 349091898 in words is "three hundred forty-nine million, ninety-one thousand, eight hundred ninety-eight".