1161748428 has 24 divisors (see below), whose sum is σ = 2716564032. Its totient is φ = 386418384.

The previous prime is 1161748403. The next prime is 1161748447. The reversal of 1161748428 is 8248471611.

It is a self number, because there is not a number n which added to its sum of digits gives 1161748428.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98050 + ... + 109257.

It is an arithmetic number, because the mean of its divisors is an integer number (113190168).

Almost surely, 2^1161748428 is an apocalyptic number.

It is an amenable number.

1161748428 is an abundant number, since it is smaller than the sum of its proper divisors (1554815604).

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

1161748428 is a wasteful number, since it uses less digits than its factorization.

1161748428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207781 (or 207779 counting only the distinct ones).

The product of its digits is 86016, while the sum is 42.

The square root of 1161748428 is about 34084.4308739342. The cubic root of 1161748428 is about 1051.2452129464.

The spelling of 1161748428 in words is "one billion, one hundred sixty-one million, seven hundred forty-eight thousand, four hundred twenty-eight".