1802434128 has 160 divisors (see below), whose sum is σ = 5249664000. Its totient is φ = 528153600.

The previous prime is 1802434121. The next prime is 1802434157. The reversal of 1802434128 is 8214342081.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1802434121) 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, 3008773 + ... + 3009371.

It is an arithmetic number, because the mean of its divisors is an integer number (32810400).

Almost surely, 2^1802434128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1802434128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2624832000).

1802434128 is an abundant number, since it is smaller than the sum of its proper divisors (3447229872).

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

1802434128 is a wasteful number, since it uses less digits than its factorization.

1802434128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801 (or 795 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 1802434128 is about 42455.0836531975. The cubic root of 1802434128 is about 1216.9884802141.

The spelling of 1802434128 in words is "one billion, eight hundred two million, four hundred thirty-four thousand, one hundred twenty-eight".