342499890 has 32 divisors (see below), whose sum is σ = 865264320. Its totient is φ = 86526144.

The previous prime is 342499879. The next prime is 342499891. The reversal of 342499890 is 98994243.

It is a super-4 number, since 4×342499890⁴ (a number of 35 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (342499891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299869 + ... + 301008.

It is an arithmetic number, because the mean of its divisors is an integer number (27039510).

Almost surely, 2^342499890 is an apocalyptic number.

342499890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

342499890 is an abundant number, since it is smaller than the sum of its proper divisors (522764430).

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

342499890 is a wasteful number, since it uses less digits than its factorization.

342499890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600906.

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 342499890 is about 18506.7525514338. The cubic root of 342499890 is about 699.6596236338.

The spelling of 342499890 in words is "three hundred forty-two million, four hundred ninety-nine thousand, eight hundred ninety".