40868554 has 8 divisors (see below), whose sum is σ = 62798148. Its totient is φ = 19935840.

The previous prime is 40868551. The next prime is 40868567. The reversal of 40868554 is 45586804.

It can be written as a sum of positive squares in 2 ways, for example, as 31102929 + 9765625 = 5577^2 + 3125^2 .

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

It is not an unprimeable number, because it can be changed into a prime (40868551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249117 + ... + 249280.

Almost surely, 2^40868554 is an apocalyptic number.

40868554 is a deficient number, since it is larger than the sum of its proper divisors (21929594).

40868554 is a wasteful number, since it uses less digits than its factorization.

40868554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498440.

The product of its (nonzero) digits is 153600, while the sum is 40.

The square root of 40868554 is about 6392.8517893034. The cubic root of 40868554 is about 344.4528300498.

The spelling of 40868554 in words is "forty million, eight hundred sixty-eight thousand, five hundred fifty-four".