1120489636 has 24 divisors (see below), whose sum is σ = 2258093376. Its totient is φ = 476542560.

The previous prime is 1120489633. The next prime is 1120489639. The reversal of 1120489636 is 6369840211.

It is an interprime number because it is at equal distance from previous prime (1120489633) and next prime (1120489639).

It is a hoax number, since the sum of its digits (40) 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 (1120489633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149071 + ... + 156406.

It is an arithmetic number, because the mean of its divisors is an integer number (94087224).

Almost surely, 2^1120489636 is an apocalyptic number.

It is an amenable number.

1120489636 is an abundant number, since it is smaller than the sum of its proper divisors (1137603740).

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

1120489636 is a wasteful number, since it uses less digits than its factorization.

1120489636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305619 (or 305617 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 1120489636 is about 33473.7155989591. The cubic root of 1120489636 is about 1038.6501335628.

The spelling of 1120489636 in words is "one billion, one hundred twenty million, four hundred eighty-nine thousand, six hundred thirty-six".