40722447 has 8 divisors (see below), whose sum is σ = 54449280. Its totient is φ = 27071960.

The previous prime is 40722439. The next prime is 40722457. The reversal of 40722447 is 74422704.

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 40722447 - 2³ = 40722439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40722427) 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, 17829 + ... + 19982.

It is an arithmetic number, because the mean of its divisors is an integer number (6806160).

Almost surely, 2^40722447 is an apocalyptic number.

40722447 is a deficient number, since it is larger than the sum of its proper divisors (13726833).

40722447 is a wasteful number, since it uses less digits than its factorization.

40722447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38173.

The product of its (nonzero) digits is 12544, while the sum is 30.

The square root of 40722447 is about 6381.4141849593. The cubic root of 40722447 is about 344.0418615678.

The spelling of 40722447 in words is "forty million, seven hundred twenty-two thousand, four hundred forty-seven".