9000419981 has 16 divisors (see below), whose sum is σ = 10359148800. Its totient is φ = 7660120320.

The previous prime is 9000419933. The next prime is 9000419983. The reversal of 9000419981 is 1899140009.

It is a cyclic number.

It is not a de Polignac number, because 9000419981 - 2¹⁰ = 9000418957 is a prime.

It is a super-2 number, since 2×9000419981² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9000419983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 581120 + ... + 596406.

It is an arithmetic number, because the mean of its divisors is an integer number (647446800).

Almost surely, 2^9000419981 is an apocalyptic number.

It is an amenable number.

9000419981 is a deficient number, since it is larger than the sum of its proper divisors (1358728819).

9000419981 is a wasteful number, since it uses less digits than its factorization.

9000419981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15884.

The product of its (nonzero) digits is 23328, while the sum is 41.

The square root of 9000419981 is about 94870.5432734524. The cubic root of 9000419981 is about 2080.1161779443.

The spelling of 9000419981 in words is "nine billion, four hundred nineteen thousand, nine hundred eighty-one".