346690890 has 96 divisors (see below), whose sum is σ = 1109437056. Its totient is φ = 73146240.

The previous prime is 346690879. The next prime is 346690907. The reversal of 346690890 is 98096643.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12976 + ... + 29355.

It is an arithmetic number, because the mean of its divisors is an integer number (11556636).

Almost surely, 2^346690890 is an apocalyptic number.

346690890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

346690890 is an abundant number, since it is smaller than the sum of its proper divisors (762746166).

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

346690890 is a wasteful number, since it uses less digits than its factorization.

346690890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42364 (or 42361 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 346690890 is about 18619.6372145109. The cubic root of 346690890 is about 702.5018570300.

The spelling of 346690890 in words is "three hundred forty-six million, six hundred ninety thousand, eight hundred ninety".