1163903936 has 56 divisors (see below), whose sum is σ = 2491703424. Its totient is φ = 536232960.

The previous prime is 1163903927. The next prime is 1163903969. The reversal of 1163903936 is 6393093611.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1163903893 and 1163903902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 717206 + ... + 718826.

It is an arithmetic number, because the mean of its divisors is an integer number (44494704).

Almost surely, 2^1163903936 is an apocalyptic number.

1163903936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1163903936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1245851712).

1163903936 is an abundant number, since it is smaller than the sum of its proper divisors (1327799488).

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

1163903936 is a wasteful number, since it uses less digits than its factorization.

1163903936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2509 (or 2499 counting only the distinct ones).

The product of its (nonzero) digits is 78732, while the sum is 41.

The square root of 1163903936 is about 34116.0363465629. The cubic root of 1163903936 is about 1051.8949713706.

The spelling of 1163903936 in words is "one billion, one hundred sixty-three million, nine hundred three thousand, nine hundred thirty-six".