40038847 has 8 divisors (see below), whose sum is σ = 41278032. Its totient is φ = 38808000.

The previous prime is 40038839. The next prime is 40038907. The reversal of 40038847 is 74883004.

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 40038847 - 2³ = 40038839 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 (40038347) 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, 8472 + ... + 12322.

It is an arithmetic number, because the mean of its divisors is an integer number (5159754).

Almost surely, 2^40038847 is an apocalyptic number.

40038847 is a deficient number, since it is larger than the sum of its proper divisors (1239185).

40038847 is a wasteful number, since it uses less digits than its factorization.

40038847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4169.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 40038847 is about 6327.6257000553. The cubic root of 40038847 is about 342.1058659070.

The spelling of 40038847 in words is "forty million, thirty-eight thousand, eight hundred forty-seven".