42374399 has 2 divisors, whose sum is σ = 42374400. Its totient is φ = 42374398.

The previous prime is 42374377. The next prime is 42374407. The reversal of 42374399 is 99347324.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42374399 is a prime.

It is a super-2 number, since 2×42374399² = 3591179381222402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42374309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21187199 + 21187200.

It is an arithmetic number, because the mean of its divisors is an integer number (21187200).

Almost surely, 2^42374399 is an apocalyptic number.

42374399 is a deficient number, since it is larger than the sum of its proper divisors (1).

42374399 is an equidigital number, since it uses as much as digits as its factorization.

42374399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 41.

The square root of 42374399 is about 6509.5621204502. The cubic root of 42374399 is about 348.6324842259.

The spelling of 42374399 in words is "forty-two million, three hundred seventy-four thousand, three hundred ninety-nine".