40074669 has 10 divisors (see below), whose sum is σ = 59864750. Its totient is φ = 26716392.

The previous prime is 40074649. The next prime is 40074701. The reversal of 40074669 is 96647004.

It can be written as a sum of positive squares in only one way, i.e., 27436644 + 12638025 = 5238^2 + 3555^2 .

It is a de Polignac number, because none of the positive numbers 2^k-40074669 is a prime.

It is a super-2 number, since 2×40074669² = 3211958190919122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40074649) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 247294 + ... + 247455.

It is an arithmetic number, because the mean of its divisors is an integer number (5986475).

Almost surely, 2^40074669 is an apocalyptic number.

It is an amenable number.

40074669 is a deficient number, since it is larger than the sum of its proper divisors (19790081).

40074669 is an equidigital number, since it uses as much as digits as its factorization.

40074669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494761 (or 494752 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 40074669 is about 6330.4556708029. The cubic root of 40074669 is about 342.2078607138.

The spelling of 40074669 in words is "forty million, seventy-four thousand, six hundred sixty-nine".