1804142500 has 60 divisors (see below), whose sum is σ = 4004555632. Its totient is φ = 710820000.

The previous prime is 1804142491. The next prime is 1804142551. The reversal of 1804142500 is 52414081.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 162115 + ... + 172885.

Almost surely, 2^1804142500 is an apocalyptic number.

1804142500 is a gapful number since it is divisible by the number (10) 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 1804142500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2002277816).

1804142500 is an abundant number, since it is smaller than the sum of its proper divisors (2200413132).

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

1804142500 is a wasteful number, since it uses less digits than its factorization.

1804142500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10862 (or 10845 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 1804142500 is about 42475.1986457980. The cubic root of 1804142500 is about 1217.3728516410.

Adding to 1804142500 its reverse (52414081), we get a palindrome (1856556581).

The spelling of 1804142500 in words is "one billion, eight hundred four million, one hundred forty-two thousand, five hundred".