901981088 has 24 divisors (see below), whose sum is σ = 1776839652. Its totient is φ = 450720256.

The previous prime is 901981081. The next prime is 901981103. The reversal of 901981088 is 880189109.

It is a happy number.

It is a Cunningham number, because it is equal to 30033²-1.

It can be written as a sum of positive squares in 2 ways, for example, as 901680784 + 300304 = 30028^2 + 548^2 .

It is not an unprimeable number, because it can be changed into a prime (901981081) 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, 52556 + ... + 67572.

Almost surely, 2^901981088 is an apocalyptic number.

It is an amenable number.

901981088 is a deficient number, since it is larger than the sum of its proper divisors (874858564).

901981088 is a wasteful number, since it uses less digits than its factorization.

901981088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16904 (or 16896 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 44.

The square root of 901981088 is about 30032.9999833516. Note that the first 4 decimals coincide. The cubic root of 901981088 is about 966.1972800560.

The spelling of 901981088 in words is "nine hundred one million, nine hundred eighty-one thousand, eighty-eight".