40182789 has 8 divisors (see below), whose sum is σ = 55305472. Its totient is φ = 25924320.

The previous prime is 40182787. The next prime is 40182799. The reversal of 40182789 is 98728104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40182789 - 2¹ = 40182787 is a prime.

It is a super-2 number, since 2×40182789² = 3229313063637042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40182787) 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, 215944 + ... + 216129.

It is an arithmetic number, because the mean of its divisors is an integer number (6913184).

Almost surely, 2^40182789 is an apocalyptic number.

It is an amenable number.

40182789 is a deficient number, since it is larger than the sum of its proper divisors (15122683).

40182789 is a wasteful number, since it uses less digits than its factorization.

40182789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432107.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 40182789 is about 6338.9895882546. The cubic root of 40182789 is about 342.5153391464.

The spelling of 40182789 in words is "forty million, one hundred eighty-two thousand, seven hundred eighty-nine".