40559340 has 48 divisors (see below), whose sum is σ = 114686208. Its totient is φ = 10709184.

The previous prime is 40559333. The next prime is 40559353. The reversal of 40559340 is 4395504.

It is a super-2 number, since 2×40559340² = 3290120122471200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 40559298 and 40559307.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2899 + ... + 9461.

It is an arithmetic number, because the mean of its divisors is an integer number (2389296).

Almost surely, 2^40559340 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 40559340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57343104).

40559340 is an abundant number, since it is smaller than the sum of its proper divisors (74126868).

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

40559340 is a wasteful number, since it uses less digits than its factorization.

40559340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6678 (or 6676 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 40559340 is about 6368.6215148963. The cubic root of 40559340 is about 343.5819127530.

The spelling of 40559340 in words is "forty million, five hundred fifty-nine thousand, three hundred forty".