374244421 has 2 divisors, whose sum is σ = 374244422. Its totient is φ = 374244420.

The previous prime is 374244419. The next prime is 374244439. The reversal of 374244421 is 124442473.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 368064225 + 6180196 = 19185^2 + 2486^2 .

It is a cyclic number.

It is not a de Polignac number, because 374244421 - 2¹ = 374244419 is a prime.

Together with 374244419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (374244461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187122210 + 187122211.

It is an arithmetic number, because the mean of its divisors is an integer number (187122211).

Almost surely, 2^374244421 is an apocalyptic number.

It is an amenable number.

374244421 is a deficient number, since it is larger than the sum of its proper divisors (1).

374244421 is an equidigital number, since it uses as much as digits as its factorization.

374244421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 31.

The square root of 374244421 is about 19345.3979281895. The cubic root of 374244421 is about 720.6401335086.

Adding to 374244421 its reverse (124442473), we get a palindrome (498686894).

The spelling of 374244421 in words is "three hundred seventy-four million, two hundred forty-four thousand, four hundred twenty-one".