900040994 has 8 divisors (see below), whose sum is σ = 1350209388. Its totient is φ = 449971200.

The previous prime is 900040993. The next prime is 900041003. The reversal of 900040994 is 499040009.

It can be written as a sum of positive squares in 2 ways, for example, as 623251225 + 276789769 = 24965^2 + 16637^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (900040993) 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 3 ways as a sum of consecutive naturals, for example, 5594 + ... + 42794.

Almost surely, 2^900040994 is an apocalyptic number.

900040994 is a deficient number, since it is larger than the sum of its proper divisors (450168394).

900040994 is a wasteful number, since it uses less digits than its factorization.

900040994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49300.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 900040994 is about 30000.6832255534. The cubic root of 900040994 is about 965.5040433726.

It can be divided in two parts, 9000 and 40994, that added together give a palindrome (49994).

The spelling of 900040994 in words is "nine hundred million, forty thousand, nine hundred ninety-four".