40254661 has 8 divisors (see below), whose sum is σ = 41649048. Its totient is φ = 38880000.

The previous prime is 40254629. The next prime is 40254667. The reversal of 40254661 is 16645204.

40254661 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 4 ways, for example, as 324900 + 39929761 = 570^2 + 6319^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 4-Lehmer number, since φ(40254661) divides (40254661-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 40254661 - 2⁵ = 40254629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40254667) 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 in 7 ways as a sum of consecutive naturals, for example, 720 + ... + 9001.

It is an arithmetic number, because the mean of its divisors is an integer number (5206131).

Almost surely, 2^40254661 is an apocalyptic number.

40254661 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

40254661 is a deficient number, since it is larger than the sum of its proper divisors (1394387).

40254661 is a wasteful number, since it uses less digits than its factorization.

40254661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9863.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 40254661 is about 6344.6560978512. The cubic root of 40254661 is about 342.7194281823.

Adding to 40254661 its reverse (16645204), we get a palindrome (56899865).

The spelling of 40254661 in words is "forty million, two hundred fifty-four thousand, six hundred sixty-one".