40756660 has 48 divisors (see below), whose sum is σ = 98945280. Its totient is φ = 13812480.

The previous prime is 40756649. The next prime is 40756663. The reversal of 40756660 is 6665704.

It is a super-2 number, since 2×40756660² = 3322210668711200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40756663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10825 + ... + 14095.

It is an arithmetic number, because the mean of its divisors is an integer number (2061360).

Almost surely, 2^40756660 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 40756660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49472640).

40756660 is an abundant number, since it is smaller than the sum of its proper divisors (58188620).

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

40756660 is a wasteful number, since it uses less digits than its factorization.

40756660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3376 (or 3374 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 40756660 is about 6384.0942975492. The cubic root of 40756660 is about 344.1381836230.

The spelling of 40756660 in words is "forty million, seven hundred fifty-six thousand, six hundred sixty".