42144726 has 32 divisors (see below), whose sum is σ = 91068768. Its totient is φ = 12925440.

The previous prime is 42144721. The next prime is 42144731. The reversal of 42144726 is 62744124.

It is an interprime number because it is at equal distance from previous prime (42144721) and next prime (42144731).

It is a junction number, because it is equal to n+sod(n) for n = 42144693 and 42144702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42144721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30286 + ... + 31646.

It is an arithmetic number, because the mean of its divisors is an integer number (2845899).

Almost surely, 2^42144726 is an apocalyptic number.

42144726 is an abundant number, since it is smaller than the sum of its proper divisors (48924042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42144726 is a wasteful number, since it uses less digits than its factorization.

42144726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776.

The product of its digits is 10752, while the sum is 30.

The square root of 42144726 is about 6491.8969492745. The cubic root of 42144726 is about 348.0014698049.

The spelling of 42144726 in words is "forty-two million, one hundred forty-four thousand, seven hundred twenty-six".