13840574 has 16 divisors (see below), whose sum is σ = 23034240. Its totient is φ = 6183960.

The previous prime is 13840573. The next prime is 13840577. The reversal of 13840574 is 47504831.

It is a super-2 number, since 2×13840574² = 383122977298952, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13840574.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13840571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4034 + ... + 6629.

It is an arithmetic number, because the mean of its divisors is an integer number (1439640).

Almost surely, 2^13840574 is an apocalyptic number.

13840574 is a deficient number, since it is larger than the sum of its proper divisors (9193666).

13840574 is a wasteful number, since it uses less digits than its factorization.

13840574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10735.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 13840574 is about 3720.2921928257. The cubic root of 13840574 is about 240.0958760459.

The spelling of 13840574 in words is "thirteen million, eight hundred forty thousand, five hundred seventy-four".