981160390 has 32 divisors (see below), whose sum is σ = 2022568704. Its totient is φ = 335700960.

The previous prime is 981160373. The next prime is 981160403. The reversal of 981160390 is 93061189.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 20097 + ... + 48643.

It is an arithmetic number, because the mean of its divisors is an integer number (63205272).

Almost surely, 2^981160390 is an apocalyptic number.

981160390 is an abundant number, since it is smaller than the sum of its proper divisors (1041408314).

981160390 is a wasteful number, since it uses less digits than its factorization.

981160390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29052.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 981160390 is about 31323.4798513831. The cubic root of 981160390 is about 993.6802752129.

The spelling of 981160390 in words is "nine hundred eighty-one million, one hundred sixty thousand, three hundred ninety".