40447265 has 8 divisors (see below), whose sum is σ = 48649920. Its totient is φ = 32282352.

The previous prime is 40447261. The next prime is 40447283. The reversal of 40447265 is 56274404.

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 40447265 - 2² = 40447261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40447261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7019 + ... + 11408.

It is an arithmetic number, because the mean of its divisors is an integer number (6081240).

Almost surely, 2^40447265 is an apocalyptic number.

It is an amenable number.

40447265 is a deficient number, since it is larger than the sum of its proper divisors (8202655).

40447265 is a wasteful number, since it uses less digits than its factorization.

40447265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18871.

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 40447265 is about 6359.8164281683. The cubic root of 40447265 is about 343.2651549250.

The spelling of 40447265 in words is "forty million, four hundred forty-seven thousand, two hundred sixty-five".