40072454447 has 8 divisors (see below), whose sum is σ = 40148102544. Its totient is φ = 39996851328.

The previous prime is 40072454407. The next prime is 40072454449. The reversal of 40072454447 is 74445427004.

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 40072454447 - 2¹² = 40072450351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40072454449) 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, 2154128 + ... + 2172650.

It is an arithmetic number, because the mean of its divisors is an integer number (5018512818).

Almost surely, 2^40072454447 is an apocalyptic number.

40072454447 is a deficient number, since it is larger than the sum of its proper divisors (75648097).

40072454447 is a wasteful number, since it uses less digits than its factorization.

40072454447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22489.

The product of its (nonzero) digits is 501760, while the sum is 41.

The spelling of 40072454447 in words is "forty billion, seventy-two million, four hundred fifty-four thousand, four hundred forty-seven".