42033631 has 2 divisors, whose sum is σ = 42033632. Its totient is φ = 42033630.

The previous prime is 42033623. The next prime is 42033653. The reversal of 42033631 is 13633024.

42033631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (42033653) can be obtained adding 42033631 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42033631 - 2³ = 42033623 is a prime.

It is a super-2 number, since 2×42033631² = 3533652270088322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42033601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21016815 + 21016816.

It is an arithmetic number, because the mean of its divisors is an integer number (21016816).

Almost surely, 2^42033631 is an apocalyptic number.

42033631 is a deficient number, since it is larger than the sum of its proper divisors (1).

42033631 is an equidigital number, since it uses as much as digits as its factorization.

42033631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 42033631 is about 6483.3348671806. The cubic root of 42033631 is about 347.6954193008.

Adding to 42033631 its reverse (13633024), we get a palindrome (55666655).

The spelling of 42033631 in words is "forty-two million, thirty-three thousand, six hundred thirty-one".