40840560 has 120 divisors (see below), whose sum is σ = 138522384. Its totient is φ = 10782720.

The previous prime is 40840543. The next prime is 40840577. The reversal of 40840560 is 6504804.

It is an interprime number because it is at equal distance from previous prime (40840543) and next prime (40840577).

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×40840560² = 3335902682227200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94104 + ... + 94536.

Almost surely, 2^40840560 is an apocalyptic number.

40840560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40840560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69261192).

40840560 is an abundant number, since it is smaller than the sum of its proper divisors (97681824).

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

40840560 is a wasteful number, since it uses less digits than its factorization.

40840560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583 (or 574 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 40840560 is about 6390.6619375461. The cubic root of 40840560 is about 344.3741647186.

The spelling of 40840560 in words is "forty million, eight hundred forty thousand, five hundred sixty".