40073847 has 16 divisors (see below), whose sum is σ = 58544640. Its totient is φ = 24180800.

The previous prime is 40073837. The next prime is 40073857. The reversal of 40073847 is 74837004.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40073837) and next prime (40073857).

It is a cyclic number.

It is not a de Polignac number, because 40073847 - 2⁶ = 40073783 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40073827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5347 + ... + 10427.

It is an arithmetic number, because the mean of its divisors is an integer number (3659040).

Almost surely, 2^40073847 is an apocalyptic number.

40073847 is a deficient number, since it is larger than the sum of its proper divisors (18470793).

40073847 is a wasteful number, since it uses less digits than its factorization.

40073847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5334.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 40073847 is about 6330.3907462336. The cubic root of 40073847 is about 342.2055209416.

It can be divided in two parts, 400 and 73847, that added together give a palindrome (74247).

The spelling of 40073847 in words is "forty million, seventy-three thousand, eight hundred forty-seven".