346918990 has 16 divisors (see below), whose sum is σ = 681222960. Its totient is φ = 126152320.

The previous prime is 346918981. The next prime is 346918991. The reversal of 346918990 is 99819643.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346918991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1576795 + ... + 1577014.

It is an arithmetic number, because the mean of its divisors is an integer number (42576435).

Almost surely, 2^346918990 is an apocalyptic number.

346918990 is a deficient number, since it is larger than the sum of its proper divisors (334303970).

346918990 is a wasteful number, since it uses less digits than its factorization.

346918990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3153827.

The product of its (nonzero) digits is 419904, while the sum is 49.

The square root of 346918990 is about 18625.7614609444. The cubic root of 346918990 is about 702.6558900590.

It can be divided in two parts, 34691 and 8990, that added together give a square (43681 = 209²).

The spelling of 346918990 in words is "three hundred forty-six million, nine hundred eighteen thousand, nine hundred ninety".