1804135032 has 128 divisors (see below), whose sum is σ = 5798515200. Its totient is φ = 515432160.

The previous prime is 1804135031. The next prime is 1804135043. The reversal of 1804135032 is 2305314081.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1804134987 and 1804135005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1804135031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115107 + ... + 129837.

It is an arithmetic number, because the mean of its divisors is an integer number (45300900).

Almost surely, 2^1804135032 is an apocalyptic number.

1804135032 is a gapful number since it is divisible by the number (12) 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 1804135032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2899257600).

1804135032 is an abundant number, since it is smaller than the sum of its proper divisors (3994380168).

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

1804135032 is an equidigital number, since it uses as much as digits as its factorization.

1804135032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14765 (or 14743 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1804135032 is about 42475.1107355826. The cubic root of 1804135032 is about 1217.3711719228.

The spelling of 1804135032 in words is "one billion, eight hundred four million, one hundred thirty-five thousand, thirty-two".