42441531 has 8 divisors (see below), whose sum is σ = 61733184. Its totient is φ = 25722120.

The previous prime is 42441527. The next prime is 42441551. The reversal of 42441531 is 13514424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42441531 - 2² = 42441527 is a prime.

It is a super-2 number, since 2×42441531² = 3602567107247922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42441551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 643021 + ... + 643086.

It is an arithmetic number, because the mean of its divisors is an integer number (7716648).

Almost surely, 2^42441531 is an apocalyptic number.

42441531 is a deficient number, since it is larger than the sum of its proper divisors (19291653).

42441531 is a wasteful number, since it uses less digits than its factorization.

42441531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286121.

The product of its digits is 1920, while the sum is 24.

The square root of 42441531 is about 6514.7164942152. The cubic root of 42441531 is about 348.8164950738.

Adding to 42441531 its reverse (13514424), we get a palindrome (55955955).

It can be divided in two parts, 4244 and 1531, that added together give a palindrome (5775).

The spelling of 42441531 in words is "forty-two million, four hundred forty-one thousand, five hundred thirty-one".