42544756 has 12 divisors (see below), whose sum is σ = 77690592. Its totient is φ = 20347448.

The previous prime is 42544681. The next prime is 42544763. The reversal of 42544756 is 65744524.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231130 + ... + 231313.

It is an arithmetic number, because the mean of its divisors is an integer number (6474216).

Almost surely, 2^42544756 is an apocalyptic number.

42544756 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

42544756 is a deficient number, since it is larger than the sum of its proper divisors (35145836).

42544756 is a wasteful number, since it uses less digits than its factorization.

42544756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462470 (or 462468 counting only the distinct ones).

The product of its digits is 134400, while the sum is 37.

The square root of 42544756 is about 6522.6341304721. The cubic root of 42544756 is about 349.0990597368.

It can be divided in two parts, 425447 and 56, that added together give a triangular number (425503 = T₉₂₂).

The spelling of 42544756 in words is "forty-two million, five hundred forty-four thousand, seven hundred fifty-six".