990955260 has 144 divisors (see below), whose sum is σ = 3203141760. Its totient is φ = 247259520.

The previous prime is 990955247. The next prime is 990955261. The reversal of 990955260 is 62559099.

990955260 is a `hidden beast` number, since 9 + 90 + 9 + 552 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990955261) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 282115 + ... + 285605.

It is an arithmetic number, because the mean of its divisors is an integer number (22244040).

Almost surely, 2^990955260 is an apocalyptic number.

990955260 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 990955260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1601570880).

990955260 is an abundant number, since it is smaller than the sum of its proper divisors (2212186500).

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

990955260 is a wasteful number, since it uses less digits than its factorization.

990955260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3608 (or 3603 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 45.

The square root of 990955260 is about 31479.4418629047. The cubic root of 990955260 is about 996.9759510126.

The spelling of 990955260 in words is "nine hundred ninety million, nine hundred fifty-five thousand, two hundred sixty".