42200491 has 2 divisors, whose sum is σ = 42200492. Its totient is φ = 42200490.

The previous prime is 42200467. The next prime is 42200519. The reversal of 42200491 is 19400224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42200491 - 2¹³ = 42192299 is a prime.

It is not a weakly prime, because it can be changed into another prime (42200441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21100245 + 21100246.

It is an arithmetic number, because the mean of its divisors is an integer number (21100246).

Almost surely, 2^42200491 is an apocalyptic number.

42200491 is a deficient number, since it is larger than the sum of its proper divisors (1).

42200491 is an equidigital number, since it uses as much as digits as its factorization.

42200491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 42200491 is about 6496.1904990540. The cubic root of 42200491 is about 348.1548915238.

The spelling of 42200491 in words is "forty-two million, two hundred thousand, four hundred ninety-one".