40042182 has 32 divisors (see below), whose sum is σ = 81793152. Its totient is φ = 13065984.

The previous prime is 40042181. The next prime is 40042187. The reversal of 40042182 is 28124004.

It is a super-2 number, since 2×40042182² = 3206752678642248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40042181) 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, 61953 + ... + 62595.

It is an arithmetic number, because the mean of its divisors is an integer number (2556036).

Almost surely, 2^40042182 is an apocalyptic number.

40042182 is an abundant number, since it is smaller than the sum of its proper divisors (41750970).

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

40042182 is a wasteful number, since it uses less digits than its factorization.

40042182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 40042182 is about 6327.8892215335. The cubic root of 40042182 is about 342.1153641108.

Adding to 40042182 its reverse (28124004), we get a palindrome (68166186).

The spelling of 40042182 in words is "forty million, forty-two thousand, one hundred eighty-two".