40044342 has 32 divisors (see below), whose sum is σ = 86929920. Its totient is φ = 12224160.

The previous prime is 40044341. The next prime is 40044349. The reversal of 40044342 is 24344004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40044341) 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, 8259 + ... + 12177.

It is an arithmetic number, because the mean of its divisors is an integer number (2716560).

Almost surely, 2^40044342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40044342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43464960).

40044342 is an abundant number, since it is smaller than the sum of its proper divisors (46885578).

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

40044342 is a wasteful number, since it uses less digits than its factorization.

40044342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4068.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 40044342 is about 6328.0598922577. The cubic root of 40044342 is about 342.1215155896.

Adding to 40044342 its reverse (24344004), we get a palindrome (64388346).

The spelling of 40044342 in words is "forty million, forty-four thousand, three hundred forty-two".