40010142 has 16 divisors (see below), whose sum is σ = 81377280. Its totient is φ = 13110552.

The previous prime is 40010123. The next prime is 40010147. The reversal of 40010142 is 24101004.

It is a super-2 number, since 2×40010142² = 3201622925720328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40010147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56158 + ... + 56865.

It is an arithmetic number, because the mean of its divisors is an integer number (5086080).

Almost surely, 2^40010142 is an apocalyptic number.

40010142 is an abundant number, since it is smaller than the sum of its proper divisors (41367138).

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

40010142 is a wasteful number, since it uses less digits than its factorization.

40010142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113087.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 40010142 is about 6325.3570650201. The cubic root of 40010142 is about 342.0240911862.

Adding to 40010142 its reverse (24101004), we get a palindrome (64111146).

The spelling of 40010142 in words is "forty million, ten thousand, one hundred forty-two".