40409182 has 32 divisors (see below), whose sum is σ = 68834304. Its totient is φ = 17625600.

The previous prime is 40409179. The next prime is 40409197. The reversal of 40409182 is 28190404.

It is a self number, because there is not a number n which added to its sum of digits gives 40409182.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131473 + ... + 131779.

It is an arithmetic number, because the mean of its divisors is an integer number (2151072).

Almost surely, 2^40409182 is an apocalyptic number.

40409182 is a deficient number, since it is larger than the sum of its proper divisors (28425122).

40409182 is a wasteful number, since it uses less digits than its factorization.

40409182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 40409182 is about 6356.8216901216. The cubic root of 40409182 is about 343.1573876726.

Adding to 40409182 its reverse (28190404), we get a palindrome (68599586).

The spelling of 40409182 in words is "forty million, four hundred nine thousand, one hundred eighty-two".