42406627 has 2 divisors, whose sum is σ = 42406628. Its totient is φ = 42406626.

The previous prime is 42406621. The next prime is 42406657. The reversal of 42406627 is 72660424.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42406627 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42406621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21203313 + 21203314.

It is an arithmetic number, because the mean of its divisors is an integer number (21203314).

Almost surely, 2^42406627 is an apocalyptic number.

42406627 is a deficient number, since it is larger than the sum of its proper divisors (1).

42406627 is an equidigital number, since it uses as much as digits as its factorization.

42406627 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 42406627 is about 6512.0370852752. The cubic root of 42406627 is about 348.7208463873.

It can be divided in two parts, 42406 and 627, that multiplied together give a palindrome (26588562).

The spelling of 42406627 in words is "forty-two million, four hundred six thousand, six hundred twenty-seven".