42726944 has 48 divisors (see below), whose sum is σ = 91163520. Its totient is φ = 19595520.

The previous prime is 42726941. The next prime is 42726949. The reversal of 42726944 is 44962724.

It is a junction number, because it is equal to n+sod(n) for n = 42726898 and 42726907.

It is not an unprimeable number, because it can be changed into a prime (42726941) 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, 112547 + ... + 112925.

It is an arithmetic number, because the mean of its divisors is an integer number (1899240).

Almost surely, 2^42726944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42726944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45581760).

42726944 is an abundant number, since it is smaller than the sum of its proper divisors (48436576).

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

42726944 is a wasteful number, since it uses less digits than its factorization.

42726944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673 (or 665 counting only the distinct ones).

The product of its digits is 96768, while the sum is 38.

The square root of 42726944 is about 6536.5850411358. The cubic root of 42726944 is about 349.5966619045.

The spelling of 42726944 in words is "forty-two million, seven hundred twenty-six thousand, nine hundred forty-four".