374435221 has 2 divisors, whose sum is σ = 374435222. Its totient is φ = 374435220.

The previous prime is 374435213. The next prime is 374435231. The reversal of 374435221 is 122534473.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 365344996 + 9090225 = 19114^2 + 3015^2 .

It is a cyclic number.

It is not a de Polignac number, because 374435221 - 2³ = 374435213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (374435231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187217610 + 187217611.

It is an arithmetic number, because the mean of its divisors is an integer number (187217611).

Almost surely, 2^374435221 is an apocalyptic number.

It is an amenable number.

374435221 is a deficient number, since it is larger than the sum of its proper divisors (1).

374435221 is an equidigital number, since it uses as much as digits as its factorization.

374435221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 31.

The square root of 374435221 is about 19350.3287052184. The cubic root of 374435221 is about 720.7625800253.

Adding to 374435221 its reverse (122534473), we get a palindrome (496969694).

The spelling of 374435221 in words is "three hundred seventy-four million, four hundred thirty-five thousand, two hundred twenty-one".