40489344 has 96 divisors (see below), whose sum is σ = 133183440. Its totient is φ = 11566080.

The previous prime is 40489321. The next prime is 40489357. The reversal of 40489344 is 44398404.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 40489299 and 40489308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5554 + ... + 10574.

Almost surely, 2^40489344 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 40489344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66591720).

40489344 is an abundant number, since it is smaller than the sum of its proper divisors (92694096).

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

40489344 is a wasteful number, since it uses less digits than its factorization.

40489344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5048 (or 5033 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 40489344 is about 6363.1237611727. The cubic root of 40489344 is about 343.3841514205.

The spelling of 40489344 in words is "forty million, four hundred eighty-nine thousand, three hundred forty-four".