342927421 has 8 divisors (see below), whose sum is σ = 352006488. Its totient is φ = 333960000.

The previous prime is 342927419. The next prime is 342927427. The reversal of 342927421 is 124729243.

It can be written as a sum of positive squares in 4 ways, for example, as 23912100 + 319015321 = 4890^2 + 17861^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 342927421 - 2¹ = 342927419 is a prime.

It is a super-2 number, since 2×342927421² = 235198432147422482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342927427) 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, 21670 + ... + 33991.

It is an arithmetic number, because the mean of its divisors is an integer number (44000811).

Almost surely, 2^342927421 is an apocalyptic number.

It is an amenable number.

342927421 is a deficient number, since it is larger than the sum of its proper divisors (9079067).

342927421 is a wasteful number, since it uses less digits than its factorization.

342927421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55823.

The product of its digits is 24192, while the sum is 34.

The square root of 342927421 is about 18518.2996249656. The cubic root of 342927421 is about 699.9506230477.

The spelling of 342927421 in words is "three hundred forty-two million, nine hundred twenty-seven thousand, four hundred twenty-one".