809480142 has 56 divisors (see below), whose sum is σ = 1916378760. Its totient is φ = 255616560.

The previous prime is 809480141. The next prime is 809480149. The reversal of 809480142 is 241084908.

It is a junction number, because it is equal to n+sod(n) for n = 809480097 and 809480106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (809480141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 13092 + ... + 42312.

Almost surely, 2^809480142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 809480142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (958189380).

809480142 is an abundant number, since it is smaller than the sum of its proper divisors (1106898618).

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

809480142 is a wasteful number, since it uses less digits than its factorization.

809480142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29260 (or 29245 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 809480142 is about 28451.3645015490. The cubic root of 809480142 is about 931.9702869257.

The spelling of 809480142 in words is "eight hundred nine million, four hundred eighty thousand, one hundred forty-two".