40254644 has 6 divisors (see below), whose sum is σ = 70445634. Its totient is φ = 20127320.

The previous prime is 40254629. The next prime is 40254667. The reversal of 40254644 is 44645204.

It is a happy number.

40254644 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., 22090000 + 18164644 = 4700^2 + 4262^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 5031827 + ... + 5031834.

It is an arithmetic number, because the mean of its divisors is an integer number (11740939).

Almost surely, 2^40254644 is an apocalyptic number.

It is an amenable number.

40254644 is a deficient number, since it is larger than the sum of its proper divisors (30190990).

40254644 is a wasteful number, since it uses less digits than its factorization.

40254644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10063665 (or 10063663 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 40254644 is about 6344.6547581409. The cubic root of 40254644 is about 342.7193799375.

Adding to 40254644 its reverse (44645204), we get a palindrome (84899848).

The spelling of 40254644 in words is "forty million, two hundred fifty-four thousand, six hundred forty-four".