40166560 has 48 divisors (see below), whose sum is σ = 108452736. Its totient is φ = 13771008.

The previous prime is 40166557. The next prime is 40166569. The reversal of 40166560 is 6566104.

It is a super-2 number, since 2×40166560² = 3226705084467200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40166569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16812 + ... + 19051.

It is an arithmetic number, because the mean of its divisors is an integer number (2259432).

Almost surely, 2^40166560 is an apocalyptic number.

40166560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40166560 is an abundant number, since it is smaller than the sum of its proper divisors (68286176).

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

40166560 is a wasteful number, since it uses less digits than its factorization.

40166560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35885 (or 35877 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 40166560 is about 6337.7093653780. The cubic root of 40166560 is about 342.4692213093.

The spelling of 40166560 in words is "forty million, one hundred sixty-six thousand, five hundred sixty".