40207712 has 24 divisors (see below), whose sum is σ = 79319016. Its totient is φ = 20063232.

The previous prime is 40207697. The next prime is 40207721. The reversal of 40207712 is 21770204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20603 + ... + 22469.

It is an arithmetic number, because the mean of its divisors is an integer number (3304959).

Almost surely, 2^40207712 is an apocalyptic number.

It is an amenable number.

40207712 is a deficient number, since it is larger than the sum of its proper divisors (39111304).

40207712 is a wasteful number, since it uses less digits than its factorization.

40207712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2550 (or 2542 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 40207712 is about 6340.9551331010. The cubic root of 40207712 is about 342.5861384921.

Adding to 40207712 its reverse (21770204), we get a palindrome (61977916).

The spelling of 40207712 in words is "forty million, two hundred seven thousand, seven hundred twelve".