42033623 has 2 divisors, whose sum is σ = 42033624. Its totient is φ = 42033622.

The previous prime is 42033617. The next prime is 42033631. The reversal of 42033623 is 32633024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42033623 - 2¹² = 42029527 is a prime.

It is a super-2 number, since 2×42033623² = 3533650925012258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42033653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21016811 + 21016812.

It is an arithmetic number, because the mean of its divisors is an integer number (21016812).

Almost surely, 2^42033623 is an apocalyptic number.

42033623 is a deficient number, since it is larger than the sum of its proper divisors (1).

42033623 is an equidigital number, since it uses as much as digits as its factorization.

42033623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 42033623 is about 6483.3342502142. The cubic root of 42033623 is about 347.6953972425.

Adding to 42033623 its reverse (32633024), we get a palindrome (74666647).

It can be divided in two parts, 420 and 33623, that added together give a palindrome (34043).

The spelling of 42033623 in words is "forty-two million, thirty-three thousand, six hundred twenty-three".