374408081 has 2 divisors, whose sum is σ = 374408082. Its totient is φ = 374408080.

The previous prime is 374408039. The next prime is 374408101. The reversal of 374408081 is 180804473.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 292957456 + 81450625 = 17116^2 + 9025^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-374408081 is a prime.

It is a super-2 number, since 2×374408081² = 280362822236205122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (374408581) 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, 187204040 + 187204041.

It is an arithmetic number, because the mean of its divisors is an integer number (187204041).

Almost surely, 2^374408081 is an apocalyptic number.

It is an amenable number.

374408081 is a deficient number, since it is larger than the sum of its proper divisors (1).

374408081 is an equidigital number, since it uses as much as digits as its factorization.

374408081 is an odious number, because the sum of its binary digits is odd.

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

The square root of 374408081 is about 19349.6274124336. The cubic root of 374408081 is about 720.7451653806.

The spelling of 374408081 in words is "three hundred seventy-four million, four hundred eight thousand, eighty-one".