40175982 has 144 divisors (see below), whose sum is σ = 114279984. Its totient is φ = 10080000.

The previous prime is 40175977. The next prime is 40175999. The reversal of 40175982 is 28957104.

It is a super-2 number, since 2×40175982² = 3228219059328648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 397732 + ... + 397832.

It is an arithmetic number, because the mean of its divisors is an integer number (793611).

Almost surely, 2^40175982 is an apocalyptic number.

40175982 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 40175982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57139992).

40175982 is an abundant number, since it is smaller than the sum of its proper divisors (74104002).

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

40175982 is a wasteful number, since it uses less digits than its factorization.

40175982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 40175982 is about 6338.4526502925. The cubic root of 40175982 is about 342.4959972537.

It can be divided in two parts, 4017 and 5982, that added together give a palindrome (9999).

The spelling of 40175982 in words is "forty million, one hundred seventy-five thousand, nine hundred eighty-two".