9955402240 has 160 divisors (see below), whose sum is σ = 27375283584. Its totient is φ = 3401318400.

The previous prime is 9955402213. The next prime is 9955402277. The reversal of 9955402240 is 422045599.

It is a tau number, because it is divible by the number of its divisors (160).

It is a super-2 number, since 2×9955402240² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 9955402193 and 9955402202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6217440 + ... + 6219040.

Almost surely, 2^9955402240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9955402240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13687641792).

9955402240 is an abundant number, since it is smaller than the sum of its proper divisors (17419881344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9955402240 is a wasteful number, since it uses less digits than its factorization.

9955402240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1978 (or 1962 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 9955402240 is about 99776.7620240304. The cubic root of 9955402240 is about 2151.2271516200.

The spelling of 9955402240 in words is "nine billion, nine hundred fifty-five million, four hundred two thousand, two hundred forty".