342470421 has 24 divisors (see below), whose sum is σ = 521682720. Its totient is φ = 215895456.

The previous prime is 342470419. The next prime is 342470461. The reversal of 342470421 is 124074243.

It is not a de Polignac number, because 342470421 - 2¹ = 342470419 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342470411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110130 + ... + 113196.

It is an arithmetic number, because the mean of its divisors is an integer number (21736780).

Almost surely, 2^342470421 is an apocalyptic number.

It is an amenable number.

342470421 is a deficient number, since it is larger than the sum of its proper divisors (179212299).

342470421 is a wasteful number, since it uses less digits than its factorization.

342470421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3745 (or 3742 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 342470421 is about 18505.9563654516. The cubic root of 342470421 is about 699.6395566095.

The spelling of 342470421 in words is "three hundred forty-two million, four hundred seventy thousand, four hundred twenty-one".