40425706 has 4 divisors (see below), whose sum is σ = 60638562. Its totient is φ = 20212852.

The previous prime is 40425703. The next prime is 40425727. The reversal of 40425706 is 60752404.

40425706 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., 35295481 + 5130225 = 5941^2 + 2265^2 .

It is not an unprimeable number, because it can be changed into a prime (40425703) 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, 10106425 + ... + 10106428.

Almost surely, 2^40425706 is an apocalyptic number.

40425706 is a deficient number, since it is larger than the sum of its proper divisors (20212856).

40425706 is a wasteful number, since it uses less digits than its factorization.

40425706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20212855.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 40425706 is about 6358.1212633922. The cubic root of 40425706 is about 343.2041555907.

The spelling of 40425706 in words is "forty million, four hundred twenty-five thousand, seven hundred six".