42340951 has 2 divisors, whose sum is σ = 42340952. Its totient is φ = 42340950.

The previous prime is 42340943. The next prime is 42340967. The reversal of 42340951 is 15904324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42340951 - 2³ = 42340943 is a prime.

It is a super-2 number, since 2×42340951² = 3585512263168802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42340981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21170475 + 21170476.

It is an arithmetic number, because the mean of its divisors is an integer number (21170476).

Almost surely, 2^42340951 is an apocalyptic number.

42340951 is a deficient number, since it is larger than the sum of its proper divisors (1).

42340951 is an equidigital number, since it uses as much as digits as its factorization.

42340951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 42340951 is about 6506.9924696437. The cubic root of 42340951 is about 348.5407296984.

The spelling of 42340951 in words is "forty-two million, three hundred forty thousand, nine hundred fifty-one".