40666260 has 96 divisors (see below), whose sum is σ = 118992384. Its totient is φ = 10368000.

The previous prime is 40666259. The next prime is 40666271. The reversal of 40666260 is 6266604.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149925 + ... + 150195.

It is an arithmetic number, because the mean of its divisors is an integer number (1239504).

Almost surely, 2^40666260 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 40666260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59496192).

40666260 is an abundant number, since it is smaller than the sum of its proper divisors (78326124).

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

40666260 is a wasteful number, since it uses less digits than its factorization.

40666260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 40666260 is about 6377.0102712792. The cubic root of 40666260 is about 343.8835575786.

It can be divided in two parts, 406 and 66260, that added together give a palindrome (66666).

The spelling of 40666260 in words is "forty million, six hundred sixty-six thousand, two hundred sixty".