40366140 has 96 divisors (see below), whose sum is σ = 118117440. Its totient is φ = 10291200.

The previous prime is 40366133. The next prime is 40366159. The reversal of 40366140 is 4166304.

40366140 = 985² + 986² + ... + 1024².

It is a super-5 number, since 5×40366140⁵ (a number of 39 digits) contains 55555 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40366140.

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, 149926 + ... + 150194.

It is an arithmetic number, because the mean of its divisors is an integer number (1230390).

Almost surely, 2^40366140 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 40366140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59058720).

40366140 is an abundant number, since it is smaller than the sum of its proper divisors (77751300).

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

40366140 is a wasteful number, since it uses less digits than its factorization.

40366140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383 (or 381 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 40366140 is about 6353.4352912421. The cubic root of 40366140 is about 343.0355059052.

The spelling of 40366140 in words is "forty million, three hundred sixty-six thousand, one hundred forty".