342090494 has 4 divisors (see below), whose sum is σ = 513135744. Its totient is φ = 171045246.

The previous prime is 342090491. The next prime is 342090503. The reversal of 342090494 is 494090243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 494090243 = 227 ⋅2176609.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342090491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85522622 + ... + 85522625.

It is an arithmetic number, because the mean of its divisors is an integer number (128283936).

Almost surely, 2^342090494 is an apocalyptic number.

342090494 is a deficient number, since it is larger than the sum of its proper divisors (171045250).

342090494 is a wasteful number, since it uses less digits than its factorization.

342090494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171045249.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 342090494 is about 18495.6885246265. The cubic root of 342090494 is about 699.3807407655.

The spelling of 342090494 in words is "three hundred forty-two million, ninety thousand, four hundred ninety-four".