40283786 has 4 divisors (see below), whose sum is σ = 60425682. Its totient is φ = 20141892.

The previous prime is 40283783. The next prime is 40283791. The reversal of 40283786 is 68738204.

40283786 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 39929761 + 354025 = 6319^2 + 595^2 .

It is not an unprimeable number, because it can be changed into a prime (40283783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10070945 + ... + 10070948.

Almost surely, 2^40283786 is an apocalyptic number.

40283786 is a deficient number, since it is larger than the sum of its proper divisors (20141896).

40283786 is a wasteful number, since it uses less digits than its factorization.

40283786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20141895.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 40283786 is about 6346.9509215055. The cubic root of 40283786 is about 342.8020628946.

The spelling of 40283786 in words is "forty million, two hundred eighty-three thousand, seven hundred eighty-six".