40898866 has 4 divisors (see below), whose sum is σ = 61348302. Its totient is φ = 20449432.

The previous prime is 40898863. The next prime is 40898873. The reversal of 40898866 is 66889804.

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., 40513225 + 385641 = 6365^2 + 621^2 .

It is not an unprimeable number, because it can be changed into a prime (40898863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10224715 + ... + 10224718.

Almost surely, 2^40898866 is an apocalyptic number.

40898866 is a deficient number, since it is larger than the sum of its proper divisors (20449436).

40898866 is a wasteful number, since it uses less digits than its factorization.

40898866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20449435.

The product of its (nonzero) digits is 663552, while the sum is 49.

The square root of 40898866 is about 6395.2221228039. Note that the first 3 decimals coincide. The cubic root of 40898866 is about 344.5379686455.

The spelling of 40898866 in words is "forty million, eight hundred ninety-eight thousand, eight hundred sixty-six".