342836491 has 4 divisors (see below), whose sum is σ = 342959184. Its totient is φ = 342713800.

The previous prime is 342836477. The next prime is 342836497. The reversal of 342836491 is 194638243.

It is a happy number.

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 342836491 - 2¹⁹ = 342312203 is a prime.

It is a super-2 number, since 2×342836491² = 235073719122386162, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (342836497) 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, 57055 + ... + 62776.

It is an arithmetic number, because the mean of its divisors is an integer number (85739796).

Almost surely, 2^342836491 is an apocalyptic number.

342836491 is a deficient number, since it is larger than the sum of its proper divisors (122693).

342836491 is a wasteful number, since it uses less digits than its factorization.

342836491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122692.

The product of its digits is 124416, while the sum is 40.

The square root of 342836491 is about 18515.8443231736. The cubic root of 342836491 is about 699.8887517084. Note that the first 3 decimals are identical.

The spelling of 342836491 in words is "three hundred forty-two million, eight hundred thirty-six thousand, four hundred ninety-one".