40142982 has 32 divisors (see below), whose sum is σ = 89455104. Its totient is φ = 11904800.

The previous prime is 40142957. The next prime is 40142987. The reversal of 40142982 is 28924104.

It is a super-2 number, since 2×40142982² = 3222918007704648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40142987) 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, 3369 + ... + 9572.

It is an arithmetic number, because the mean of its divisors is an integer number (2795472).

Almost surely, 2^40142982 is an apocalyptic number.

40142982 is an abundant number, since it is smaller than the sum of its proper divisors (49312122).

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

40142982 is a wasteful number, since it uses less digits than its factorization.

40142982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13004.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 40142982 is about 6335.8489565330. The cubic root of 40142982 is about 342.4021977306.

It can be divided in two parts, 4014 and 2982, that added together give a palindrome (6996).

The spelling of 40142982 in words is "forty million, one hundred forty-two thousand, nine hundred eighty-two".