40712369 has 6 divisors (see below), whose sum is σ = 42559986. Its totient is φ = 38941760.

The previous prime is 40712363. The next prime is 40712381. The reversal of 40712369 is 96321704.

40712369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 25603600 + 15108769 = 5060^2 + 3887^2 .

It is not a de Polignac number, because 40712369 - 2¹² = 40708273 is a prime.

It is a super-2 number, since 2×40712369² = 3314993979184322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40712363) 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 5 ways as a sum of consecutive naturals, for example, 37952 + ... + 39009.

It is an arithmetic number, because the mean of its divisors is an integer number (7093331).

Almost surely, 2^40712369 is an apocalyptic number.

It is an amenable number.

40712369 is a deficient number, since it is larger than the sum of its proper divisors (1847617).

40712369 is an equidigital number, since it uses as much as digits as its factorization.

40712369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77007 (or 76984 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 40712369 is about 6380.6244992164. The cubic root of 40712369 is about 344.0134780414.

The spelling of 40712369 in words is "forty million, seven hundred twelve thousand, three hundred sixty-nine".