40071747 has 8 divisors (see below), whose sum is σ = 55152640. Its totient is φ = 25852680.

The previous prime is 40071701. The next prime is 40071749. The reversal of 40071747 is 74717004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40071747 - 2¹⁵ = 40038979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40071749) 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, 215347 + ... + 215532.

It is an arithmetic number, because the mean of its divisors is an integer number (6894080).

Almost surely, 2^40071747 is an apocalyptic number.

40071747 is a deficient number, since it is larger than the sum of its proper divisors (15080893).

40071747 is a wasteful number, since it uses less digits than its factorization.

40071747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430913.

The product of its (nonzero) digits is 5488, while the sum is 30.

The square root of 40071747 is about 6330.2248775221. The cubic root of 40071747 is about 342.1995432762.

The spelling of 40071747 in words is "forty million, seventy-one thousand, seven hundred forty-seven".