1120638867 has 64 divisors (see below), whose sum is σ = 1704468480. Its totient is φ = 651442176.

The previous prime is 1120638853. The next prime is 1120638877. The reversal of 1120638867 is 7688360211.

1120638867 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1120638867 - 2⁸ = 1120638611 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1120638817) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5806323 + ... + 5806515.

It is an arithmetic number, because the mean of its divisors is an integer number (26632320).

Almost surely, 2^1120638867 is an apocalyptic number.

1120638867 is a deficient number, since it is larger than the sum of its proper divisors (583829613).

1120638867 is a wasteful number, since it uses less digits than its factorization.

1120638867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 1120638867 is about 33475.9446020572. The cubic root of 1120638867 is about 1038.6962419523.

The spelling of 1120638867 in words is "one billion, one hundred twenty million, six hundred thirty-eight thousand, eight hundred sixty-seven".