40365447 has 4 divisors (see below), whose sum is σ = 53820600. Its totient is φ = 26910296.

The previous prime is 40365421. The next prime is 40365449. The reversal of 40365447 is 74456304.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 40365447 - 2¹² = 40361351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40365449) 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, 6727572 + ... + 6727577.

It is an arithmetic number, because the mean of its divisors is an integer number (13455150).

Almost surely, 2^40365447 is an apocalyptic number.

40365447 is a deficient number, since it is larger than the sum of its proper divisors (13455153).

40365447 is a wasteful number, since it uses less digits than its factorization.

40365447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13455152.

The product of its (nonzero) digits is 40320, while the sum is 33.

The square root of 40365447 is about 6353.3807535831. The cubic root of 40365447 is about 343.0335428328.

The spelling of 40365447 in words is "forty million, three hundred sixty-five thousand, four hundred forty-seven".