40911660 has 72 divisors (see below), whose sum is σ = 124933536. Its totient is φ = 10836480.

The previous prime is 40911659. The next prime is 40911679. The reversal of 40911660 is 6611904.

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, 29380 + ... + 30740.

It is an arithmetic number, because the mean of its divisors is an integer number (1735188).

Almost surely, 2^40911660 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 40911660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62466768).

40911660 is an abundant number, since it is smaller than the sum of its proper divisors (84021876).

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

40911660 is a wasteful number, since it uses less digits than its factorization.

40911660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1543 (or 1538 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 40911660 is about 6396.2223225901. Note that the first 3 decimals coincide. The cubic root of 40911660 is about 344.5738910695.

The spelling of 40911660 in words is "forty million, nine hundred eleven thousand, six hundred sixty".