42413431 has 2 divisors, whose sum is σ = 42413432. Its totient is φ = 42413430.

The previous prime is 42413429. The next prime is 42413461. The reversal of 42413431 is 13431424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42413431 - 2¹ = 42413429 is a prime.

It is a super-2 number, since 2×42413431² = 3597798258383522, which contains 22 as substring.

Together with 42413429, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42413401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21206715 + 21206716.

It is an arithmetic number, because the mean of its divisors is an integer number (21206716).

Almost surely, 2^42413431 is an apocalyptic number.

42413431 is a deficient number, since it is larger than the sum of its proper divisors (1).

42413431 is an equidigital number, since it uses as much as digits as its factorization.

42413431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 22.

The square root of 42413431 is about 6512.5594814942. The cubic root of 42413431 is about 348.7394957504.

Adding to 42413431 its reverse (13431424), we get a palindrome (55844855).

The spelling of 42413431 in words is "forty-two million, four hundred thirteen thousand, four hundred thirty-one".