42511344 has 40 divisors (see below), whose sum is σ = 110171520. Its totient is φ = 14125248.

The previous prime is 42511333. The next prime is 42511349. The reversal of 42511344 is 44311524.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42511349) 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, 15999 + ... + 18465.

It is an arithmetic number, because the mean of its divisors is an integer number (2754288).

Almost surely, 2^42511344 is an apocalyptic number.

It is an amenable number.

42511344 is an abundant number, since it is smaller than the sum of its proper divisors (67660176).

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

42511344 is a wasteful number, since it uses less digits than its factorization.

42511344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2837 (or 2831 counting only the distinct ones).

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

The square root of 42511344 is about 6520.0723922361. The cubic root of 42511344 is about 349.0076489212.

Adding to 42511344 its reverse (44311524), we get a palindrome (86822868).

The spelling of 42511344 in words is "forty-two million, five hundred eleven thousand, three hundred forty-four".