40010786 has 4 divisors (see below), whose sum is σ = 60016182. Its totient is φ = 20005392.

The previous prime is 40010783. The next prime is 40010797. The reversal of 40010786 is 68701004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 28955161 + 11055625 = 5381^2 + 3325^2 .

It is not an unprimeable number, because it can be changed into a prime (40010783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10002695 + ... + 10002698.

Almost surely, 2^40010786 is an apocalyptic number.

40010786 is a deficient number, since it is larger than the sum of its proper divisors (20005396).

40010786 is a wasteful number, since it uses less digits than its factorization.

40010786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20005395.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 40010786 is about 6325.4079710324. The cubic root of 40010786 is about 342.0259262404.

The spelling of 40010786 in words is "forty million, ten thousand, seven hundred eighty-six".