980855190 has 128 divisors (see below), whose sum is σ = 3085885440. Its totient is φ = 216950400.

The previous prime is 980855179. The next prime is 980855191. The reversal of 980855190 is 91558089.

980855190 is a `hidden beast` number, since 9 + 8 + 0 + 8 + 551 + 90 = 666.

It is a super-2 number, since 2×980855190² = 1924153807499872200, which contains 22 as substring.

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 (980855191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 50220 + ... + 66960.

It is an arithmetic number, because the mean of its divisors is an integer number (24108480).

Almost surely, 2^980855190 is an apocalyptic number.

980855190 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 980855190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1542942720).

980855190 is an abundant number, since it is smaller than the sum of its proper divisors (2105030250).

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

980855190 is a wasteful number, since it uses less digits than its factorization.

980855190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16795 (or 16789 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 45.

The square root of 980855190 is about 31318.6077276753. The cubic root of 980855190 is about 993.5772330485.

The spelling of 980855190 in words is "nine hundred eighty million, eight hundred fifty-five thousand, one hundred ninety".