9955240 has 32 divisors (see below), whose sum is σ = 23580000. Its totient is φ = 3772224.

The previous prime is 9955223. The next prime is 9955241. The reversal of 9955240 is 425599.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 9955196 and 9955205.

It is not an unprimeable number, because it can be changed into a prime (9955241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5790 + ... + 7309.

It is an arithmetic number, because the mean of its divisors is an integer number (736875).

Almost surely, 2^9955240 is an apocalyptic number.

It is an amenable number.

9955240 is an abundant number, since it is smaller than the sum of its proper divisors (13624760).

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

9955240 is a wasteful number, since it uses less digits than its factorization.

9955240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13129 (or 13125 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 9955240 is about 3155.1925456301. The cubic root of 9955240 is about 215.1215465603.

The spelling of 9955240 in words is "nine million, nine hundred fifty-five thousand, two hundred forty".