342994187 has 4 divisors (see below), whose sum is σ = 350970840. Its totient is φ = 335017536.

The previous prime is 342994133. The next prime is 342994189. The reversal of 342994187 is 781499243.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 342994187 - 2¹⁰ = 342993163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (342994189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3988262 + ... + 3988347.

It is an arithmetic number, because the mean of its divisors is an integer number (87742710).

Almost surely, 2^342994187 is an apocalyptic number.

342994187 is a deficient number, since it is larger than the sum of its proper divisors (7976653).

342994187 is an equidigital number, since it uses as much as digits as its factorization.

342994187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7976652.

The product of its digits is 435456, while the sum is 47.

The square root of 342994187 is about 18520.1022405385. The cubic root of 342994187 is about 699.9960455559.

The spelling of 342994187 in words is "three hundred forty-two million, nine hundred ninety-four thousand, one hundred eighty-seven".