40189266 has 96 divisors (see below), whose sum is σ = 99066240. Its totient is φ = 11692800.

The previous prime is 40189249. The next prime is 40189297. The reversal of 40189266 is 66298104.

40189266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 40189266.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 566011 + ... + 566081.

It is an arithmetic number, because the mean of its divisors is an integer number (1031940).

Almost surely, 2^40189266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40189266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49533120).

40189266 is an abundant number, since it is smaller than the sum of its proper divisors (58876974).

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

40189266 is a wasteful number, since it uses less digits than its factorization.

40189266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 40189266 is about 6339.5004535058. The cubic root of 40189266 is about 342.5337413257.

The spelling of 40189266 in words is "forty million, one hundred eighty-nine thousand, two hundred sixty-six".