981404420 has 12 divisors (see below), whose sum is σ = 2060949324. Its totient is φ = 392561760.

The previous prime is 981404401. The next prime is 981404423. The reversal of 981404420 is 24404189.

981404420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 783552064 + 197852356 = 27992^2 + 14066^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (981404423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24535091 + ... + 24535130.

It is an arithmetic number, because the mean of its divisors is an integer number (171745777).

Almost surely, 2^981404420 is an apocalyptic number.

It is an amenable number.

981404420 is an abundant number, since it is smaller than the sum of its proper divisors (1079544904).

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

981404420 is a wasteful number, since it uses less digits than its factorization.

981404420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49070230 (or 49070228 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 981404420 is about 31327.3749299235. The cubic root of 981404420 is about 993.7626496814.

The spelling of 981404420 in words is "nine hundred eighty-one million, four hundred four thousand, four hundred twenty".