981420 has 48 divisors (see below), whose sum is σ = 2999808. Its totient is φ = 237760.

The previous prime is 981419. The next prime is 981437. The reversal of 981420 is 24189.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 981420.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84 + ... + 1403.

It is an arithmetic number, because the mean of its divisors is an integer number (62496).

2⁹⁸¹⁴²⁰ 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 981420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1499904).

981420 is an abundant number, since it is smaller than the sum of its proper divisors (2018388).

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

981420 is a wasteful number, since it uses less digits than its factorization.

981420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510 (or 1508 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 981420 is about 990.6664423508. Note that the first 3 decimals coincide. The cubic root of 981420 is about 99.3767908383.

The spelling of 981420 in words is "nine hundred eighty-one thousand, four hundred twenty".