1101959028 has 18 divisors (see below), whose sum is σ = 2785507634. Its totient is φ = 367319664.

The previous prime is 1101959021. The next prime is 1101959063. The reversal of 1101959028 is 8209591011.

1101959028 is digitally balanced in base 4, 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 only one way, i.e., 1043160804 + 58798224 = 32298^2 + 7668^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 30609973 = 1101959028 / (1 + 1 + 0 + 1 + 9 + 5 + 9 + 0 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 1101958983 and 1101959001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101959021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15304951 + ... + 15305022.

Almost surely, 2^1101959028 is an apocalyptic number.

1101959028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1101959028 is an abundant number, since it is smaller than the sum of its proper divisors (1683548606).

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

1101959028 is a wasteful number, since it uses less digits than its factorization.

1101959028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30609983 (or 30609978 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 36.

The square root of 1101959028 is about 33195.7682242782. The cubic root of 1101959028 is about 1032.8925597984.

The spelling of 1101959028 in words is "one billion, one hundred one million, nine hundred fifty-nine thousand, twenty-eight".