342321890 has 16 divisors (see below), whose sum is σ = 621940032. Its totient is φ = 135648624.

The previous prime is 342321853. The next prime is 342321907. The reversal of 342321890 is 98123243.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158894 + ... + 161033.

It is an arithmetic number, because the mean of its divisors is an integer number (38871252).

Almost surely, 2^342321890 is an apocalyptic number.

342321890 is a deficient number, since it is larger than the sum of its proper divisors (279618142).

342321890 is a wasteful number, since it uses less digits than its factorization.

342321890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320041.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 342321890 is about 18501.9428709528. The cubic root of 342321890 is about 699.5383963501.

The spelling of 342321890 in words is "three hundred forty-two million, three hundred twenty-one thousand, eight hundred ninety".