40274189449 has 4 divisors (see below), whose sum is σ = 43372204036. Its totient is φ = 37176174864.

The previous prime is 40274189447. The next prime is 40274189489. The reversal of 40274189449 is 94498147204.

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

It can be written as a sum of positive squares in 2 ways, for example, as 26419251600 + 13854937849 = 162540^2 + 117707^2 .

It is a cyclic number.

It is not a de Polignac number, because 40274189449 - 2¹ = 40274189447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40274189396 and 40274189405.

It is not an unprimeable number, because it can be changed into a prime (40274189447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1549007274 + ... + 1549007299.

It is an arithmetic number, because the mean of its divisors is an integer number (10843051009).

Almost surely, 2^40274189449 is an apocalyptic number.

It is an amenable number.

40274189449 is a deficient number, since it is larger than the sum of its proper divisors (3098014587).

40274189449 is a wasteful number, since it uses less digits than its factorization.

40274189449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3098014586.

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 40274189449 in words is "forty billion, two hundred seventy-four million, one hundred eighty-nine thousand, four hundred forty-nine".