40268449 has 8 divisors (see below), whose sum is σ = 43549352. Its totient is φ = 37013760.

The previous prime is 40268447. The next prime is 40268453. The reversal of 40268449 is 94486204.

It can be written as a sum of positive squares in 4 ways, for example, as 1517824 + 38750625 = 1232^2 + 6225^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40268449 - 2¹ = 40268447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40268441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3294 + ... + 9559.

It is an arithmetic number, because the mean of its divisors is an integer number (5443669).

Almost surely, 2^40268449 is an apocalyptic number.

It is an amenable number.

40268449 is a deficient number, since it is larger than the sum of its proper divisors (3280903).

40268449 is a wasteful number, since it uses less digits than its factorization.

40268449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13107.

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 40268449 is about 6345.7425885392. The cubic root of 40268449 is about 342.7585530599.

The spelling of 40268449 in words is "forty million, two hundred sixty-eight thousand, four hundred forty-nine".