349761189 has 16 divisors (see below), whose sum is σ = 486812160. Its totient is φ = 223111680.

The previous prime is 349761187. The next prime is 349761197. The reversal of 349761189 is 981167943.

It is a happy number.

It is not a de Polignac number, because 349761189 - 2¹ = 349761187 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349761187) 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, 12852 + ... + 29405.

It is an arithmetic number, because the mean of its divisors is an integer number (30425760).

Almost surely, 2^349761189 is an apocalyptic number.

It is an amenable number.

349761189 is a deficient number, since it is larger than the sum of its proper divisors (137050971).

349761189 is a wasteful number, since it uses less digits than its factorization.

349761189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42380.

The product of its digits is 326592, while the sum is 48.

The square root of 349761189 is about 18701.9033523329. The cubic root of 349761189 is about 704.5695536468.

The spelling of 349761189 in words is "three hundred forty-nine million, seven hundred sixty-one thousand, one hundred eighty-nine".