344890890 has 24 divisors (see below), whose sum is σ = 896716548. Its totient is φ = 91970880.

The previous prime is 344890879. The next prime is 344890891. The reversal of 344890890 is 98098443.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 322166601 + 22724289 = 17949^2 + 4767^2 .

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

It is not an unprimeable number, because it can be changed into a prime (344890891) 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 11 ways as a sum of consecutive naturals, for example, 1915971 + ... + 1916150.

Almost surely, 2^344890890 is an apocalyptic number.

344890890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

344890890 is an abundant number, since it is smaller than the sum of its proper divisors (551825658).

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

344890890 is a wasteful number, since it uses less digits than its factorization.

344890890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3832134 (or 3832131 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 344890890 is about 18571.2382462775. The cubic root of 344890890 is about 701.2839632001.

The spelling of 344890890 in words is "three hundred forty-four million, eight hundred ninety thousand, eight hundred ninety".