40140874 has 4 divisors (see below), whose sum is σ = 60211314. Its totient is φ = 20070436.

The previous prime is 40140857. The next prime is 40140883. The reversal of 40140874 is 47804104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 40132225 + 8649 = 6335^2 + 93^2 .

It is a super-3 number, since 3×40140874³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10035217 + ... + 10035220.

Almost surely, 2^40140874 is an apocalyptic number.

40140874 is a deficient number, since it is larger than the sum of its proper divisors (20070440).

40140874 is a wasteful number, since it uses less digits than its factorization.

40140874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20070439.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 40140874 is about 6335.6825993732. The cubic root of 40140874 is about 342.3962041843.

Adding to 40140874 its reverse (47804104), we get a palindrome (87944978).

It can be divided in two parts, 40140 and 874, that added together give a palindrome (41014).

The spelling of 40140874 in words is "forty million, one hundred forty thousand, eight hundred seventy-four".