42442633 has 2 divisors, whose sum is σ = 42442634. Its totient is φ = 42442632.

The previous prime is 42442607. The next prime is 42442639. The reversal of 42442633 is 33624424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32626944 + 9815689 = 5712^2 + 3133^2 .

It is a cyclic number.

It is not a de Polignac number, because 42442633 - 2¹⁷ = 42311561 is a prime.

It is not a weakly prime, because it can be changed into another prime (42442639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21221316 + 21221317.

It is an arithmetic number, because the mean of its divisors is an integer number (21221317).

Almost surely, 2^42442633 is an apocalyptic number.

It is an amenable number.

42442633 is a deficient number, since it is larger than the sum of its proper divisors (1).

42442633 is an equidigital number, since it uses as much as digits as its factorization.

42442633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 28.

The square root of 42442633 is about 6514.8010714066. The cubic root of 42442633 is about 348.8195140699.

The spelling of 42442633 in words is "forty-two million, four hundred forty-two thousand, six hundred thirty-three".