40017712 has 30 divisors (see below), whose sum is σ = 90194748. Its totient is φ = 17150112.

The previous prime is 40017701. The next prime is 40017713. The reversal of 40017712 is 21771004.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (40017713) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24738 + ... + 26305.

Almost surely, 2^40017712 is an apocalyptic number.

It is an amenable number.

40017712 is an abundant number, since it is smaller than the sum of its proper divisors (50177036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40017712 is a wasteful number, since it uses less digits than its factorization.

40017712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51065 (or 51052 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 40017712 is about 6325.9554219106. The cubic root of 40017712 is about 342.0456603765.

Adding to 40017712 its reverse (21771004), we get a palindrome (61788716).

The spelling of 40017712 in words is "forty million, seventeen thousand, seven hundred twelve".