40254642 has 12 divisors (see below), whose sum is σ = 87218430. Its totient is φ = 13418208.

The previous prime is 40254629. The next prime is 40254667. The reversal of 40254642 is 24645204.

40254642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 34680321 + 5574321 = 5889^2 + 2361^2 .

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 1118167 + ... + 1118202.

Almost surely, 2^40254642 is an apocalyptic number.

40254642 is an abundant number, since it is smaller than the sum of its proper divisors (46963788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40254642 is a wasteful number, since it uses less digits than its factorization.

40254642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2236377 (or 2236374 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 40254642 is about 6344.6546005279. The cubic root of 40254642 is about 342.7193742616.

Adding to 40254642 its reverse (24645204), we get a palindrome (64899846).

The spelling of 40254642 in words is "forty million, two hundred fifty-four thousand, six hundred forty-two".