37422881 has 2 divisors, whose sum is σ = 37422882. Its totient is φ = 37422880.

The previous prime is 37422877. The next prime is 37422919. The reversal of 37422881 is 18822473.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23435281 + 13987600 = 4841^2 + 3740^2 .

It is a cyclic number.

It is not a de Polignac number, because 37422881 - 2² = 37422877 is a prime.

It is a super-2 number, since 2×37422881² = 2800944044680322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (37422811) 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, 18711440 + 18711441.

It is an arithmetic number, because the mean of its divisors is an integer number (18711441).

Almost surely, 2^37422881 is an apocalyptic number.

It is an amenable number.

37422881 is a deficient number, since it is larger than the sum of its proper divisors (1).

37422881 is an equidigital number, since it uses as much as digits as its factorization.

37422881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21504, while the sum is 35.

The square root of 37422881 is about 6117.4243763205. The cubic root of 37422881 is about 334.4868686860.

The spelling of 37422881 in words is "thirty-seven million, four hundred twenty-two thousand, eight hundred eighty-one".