40040574 has 16 divisors (see below), whose sum is σ = 91521408. Its totient is φ = 11440152.

The previous prime is 40040563. The next prime is 40040603. The reversal of 40040574 is 47504004.

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, 476632 + ... + 476715.

It is an arithmetic number, because the mean of its divisors is an integer number (5720088).

Almost surely, 2^40040574 is an apocalyptic number.

40040574 is an abundant number, since it is smaller than the sum of its proper divisors (51480834).

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

40040574 is a wasteful number, since it uses less digits than its factorization.

40040574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953359.

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 40040574 is about 6327.7621636721. The cubic root of 40040574 is about 342.1107845329.

Adding to 40040574 its reverse (47504004), we get a palindrome (87544578).

The spelling of 40040574 in words is "forty million, forty thousand, five hundred seventy-four".