342452421 has 8 divisors (see below), whose sum is σ = 507336960. Its totient is φ = 228301596.

The previous prime is 342452401. The next prime is 342452431. The reversal of 342452421 is 124254243.

It is not a de Polignac number, because 342452421 - 2¹⁰ = 342451397 is a prime.

It is a super-2 number, since 2×342452421² = 234547321297522482, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 12683423 = 342452421 / (3 + 4 + 2 + 4 + 5 + 2 + 4 + 2 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342452401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6341685 + ... + 6341738.

It is an arithmetic number, because the mean of its divisors is an integer number (63417120).

Almost surely, 2^342452421 is an apocalyptic number.

It is an amenable number.

342452421 is a deficient number, since it is larger than the sum of its proper divisors (164884539).

342452421 is a wasteful number, since it uses less digits than its factorization.

342452421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12683432 (or 12683426 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 342452421 is about 18505.4700291562. The cubic root of 342452421 is about 699.6272988768.

The spelling of 342452421 in words is "three hundred forty-two million, four hundred fifty-two thousand, four hundred twenty-one".