40636142 has 8 divisors (see below), whose sum is σ = 61079832. Its totient is φ = 20276200.

The previous prime is 40636093. The next prime is 40636151. The reversal of 40636142 is 24163604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19709 + ... + 21672.

It is an arithmetic number, because the mean of its divisors is an integer number (7634979).

Almost surely, 2^40636142 is an apocalyptic number.

40636142 is a deficient number, since it is larger than the sum of its proper divisors (20443690).

40636142 is a wasteful number, since it uses less digits than its factorization.

40636142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41874.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 40636142 is about 6374.6483824600. The cubic root of 40636142 is about 343.7986416236.

Adding to 40636142 its reverse (24163604), we get a palindrome (64799746).

The spelling of 40636142 in words is "forty million, six hundred thirty-six thousand, one hundred forty-two".