1163904 has 64 divisors (see below), whose sum is σ = 3541440. Its totient is φ = 331776.

The previous prime is 1163891. The next prime is 1163923. The reversal of 1163904 is 4093611.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 2472 + ... + 2904.

It is an arithmetic number, because the mean of its divisors is an integer number (55335).

2^1163904 is an apocalyptic number.

1163904 is a gapful number since it is divisible by the number (14) 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 1163904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1770720).

1163904 is an abundant number, since it is smaller than the sum of its proper divisors (2377536).

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

1163904 is an equidigital number, since it uses as much as digits as its factorization.

1163904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457 (or 445 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1163904 is about 1078.8438255837. The cubic root of 1163904 is about 105.1894990651.

The spelling of 1163904 in words is "one million, one hundred sixty-three thousand, nine hundred four".