40212075 has 24 divisors (see below), whose sum is σ = 69985600. Its totient is φ = 20316960.

The previous prime is 40212059. The next prime is 40212079. The reversal of 40212075 is 57021204.

It is not a de Polignac number, because 40212075 - 2⁴ = 40212059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40212079) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12685 + ... + 15534.

Almost surely, 2^40212075 is an apocalyptic number.

40212075 is a deficient number, since it is larger than the sum of its proper divisors (29773525).

40212075 is a wasteful number, since it uses less digits than its factorization.

40212075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28251 (or 28246 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 40212075 is about 6341.2991571128. The cubic root of 40212075 is about 342.5985295583.

Adding to 40212075 its reverse (57021204), we get a palindrome (97233279).

The spelling of 40212075 in words is "forty million, two hundred twelve thousand, seventy-five".