1163391432 has 64 divisors (see below), whose sum is σ = 3498931200. Its totient is φ = 314902080.

The previous prime is 1163391409. The next prime is 1163391457. The reversal of 1163391432 is 2341933611.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1163391393 and 1163391402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179044 + ... + 185427.

It is an arithmetic number, because the mean of its divisors is an integer number (54670800).

Almost surely, 2^1163391432 is an apocalyptic number.

1163391432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1163391432 is an abundant number, since it is smaller than the sum of its proper divisors (2335539768).

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

1163391432 is a wasteful number, since it uses less digits than its factorization.

1163391432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364506 (or 364502 counting only the distinct ones).

The product of its digits is 11664, while the sum is 33.

The square root of 1163391432 is about 34108.5243304368. The cubic root of 1163391432 is about 1051.7405544092.

The spelling of 1163391432 in words is "one billion, one hundred sixty-three million, three hundred ninety-one thousand, four hundred thirty-two".