40017412 has 12 divisors (see below), whose sum is σ = 70724556. Its totient is φ = 19810400.

The previous prime is 40017409. The next prime is 40017413. The reversal of 40017412 is 21471004.

It can be written as a sum of positive squares in 2 ways, for example, as 16842816 + 23174596 = 4104^2 + 4814^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40017412.

It is not an unprimeable number, because it can be changed into a prime (40017413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49123 + ... + 49930.

It is an arithmetic number, because the mean of its divisors is an integer number (5893713).

Almost surely, 2^40017412 is an apocalyptic number.

It is an amenable number.

40017412 is a deficient number, since it is larger than the sum of its proper divisors (30707144).

40017412 is a wasteful number, since it uses less digits than its factorization.

40017412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99158 (or 99156 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 40017412 is about 6325.9317100329. The cubic root of 40017412 is about 342.0448056387.

Adding to 40017412 its reverse (21471004), we get a palindrome (61488416).

The spelling of 40017412 in words is "forty million, seventeen thousand, four hundred twelve".