347139090 has 48 divisors (see below), whose sum is σ = 914942808. Its totient is φ = 91300608.

The previous prime is 347139083. The next prime is 347139109. The reversal of 347139090 is 90931743.

347139090 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 168194961 + 178944129 = 12969^2 + 13377^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19849 + ... + 32988.

Almost surely, 2^347139090 is an apocalyptic number.

347139090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

347139090 is an abundant number, since it is smaller than the sum of its proper divisors (567803718).

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

347139090 is a wasteful number, since it uses less digits than its factorization.

347139090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52923 (or 52920 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 347139090 is about 18631.6690073649. The cubic root of 347139090 is about 702.8044567955.

The spelling of 347139090 in words is "three hundred forty-seven million, one hundred thirty-nine thousand, ninety".