40011142 has 16 divisors (see below), whose sum is σ = 62600832. Its totient is φ = 19157760.

The previous prime is 40011137. The next prime is 40011151. The reversal of 40011142 is 24111004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2688 + ... + 9340.

It is an arithmetic number, because the mean of its divisors is an integer number (3912552).

Almost surely, 2^40011142 is an apocalyptic number.

40011142 is a deficient number, since it is larger than the sum of its proper divisors (22589690).

40011142 is a wasteful number, since it uses less digits than its factorization.

40011142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6783.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 40011142 is about 6325.4361114472. The cubic root of 40011142 is about 342.0269406407.

Adding to 40011142 its reverse (24111004), we get a palindrome (64122146).

The spelling of 40011142 in words is "forty million, eleven thousand, one hundred forty-two".