42126844 has 24 divisors (see below), whose sum is σ = 76776336. Its totient is φ = 20208000.

The previous prime is 42126827. The next prime is 42126859. The reversal of 42126844 is 44862124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7899 + ... + 12109.

It is an arithmetic number, because the mean of its divisors is an integer number (3199014).

Almost surely, 2^42126844 is an apocalyptic number.

It is an amenable number.

42126844 is a deficient number, since it is larger than the sum of its proper divisors (34649492).

42126844 is a wasteful number, since it uses less digits than its factorization.

42126844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4317 (or 4315 counting only the distinct ones).

The product of its digits is 12288, while the sum is 31.

The square root of 42126844 is about 6490.5195477712. The cubic root of 42126844 is about 347.9522438541.

Adding to 42126844 its reverse (44862124), we get a palindrome (86988968).

The spelling of 42126844 in words is "forty-two million, one hundred twenty-six thousand, eight hundred forty-four".