42354427 has 2 divisors, whose sum is σ = 42354428. Its totient is φ = 42354426.

The previous prime is 42354421. The next prime is 42354437. The reversal of 42354427 is 72445324.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42354427 - 2³ = 42354419 is a prime.

It is not a weakly prime, because it can be changed into another prime (42354421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21177213 + 21177214.

It is an arithmetic number, because the mean of its divisors is an integer number (21177214).

Almost surely, 2^42354427 is an apocalyptic number.

42354427 is a deficient number, since it is larger than the sum of its proper divisors (1).

42354427 is an equidigital number, since it uses as much as digits as its factorization.

42354427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 31.

The square root of 42354427 is about 6508.0278886925. The cubic root of 42354427 is about 348.5777028615.

The spelling of 42354427 in words is "forty-two million, three hundred fifty-four thousand, four hundred twenty-seven".