1018981896 has 64 divisors (see below), whose sum is σ = 2590116480. Its totient is φ = 334018560.

The previous prime is 1018981891. The next prime is 1018981919. The reversal of 1018981896 is 6981898101.

1018981896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (1018981891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 387466 + ... + 390086.

It is an arithmetic number, because the mean of its divisors is an integer number (40470570).

Almost surely, 2^1018981896 is an apocalyptic number.

It is an amenable number.

1018981896 is an abundant number, since it is smaller than the sum of its proper divisors (1571134584).

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

1018981896 is a wasteful number, since it uses less digits than its factorization.

1018981896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2894 (or 2890 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 51.

The square root of 1018981896 is about 31921.4958296130. The cubic root of 1018981896 is about 1006.2876808749.

The spelling of 1018981896 in words is "one billion, eighteen million, nine hundred eighty-one thousand, eight hundred ninety-six".