20087802 has 48 divisors (see below), whose sum is σ = 50162112. Its totient is φ = 5690880.

The previous prime is 20087797. The next prime is 20087813. The reversal of 20087802 is 20878002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15898 + ... + 17114.

It is an arithmetic number, because the mean of its divisors is an integer number (1045044).

Almost surely, 2^20087802 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20087802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25081056).

20087802 is an abundant number, since it is smaller than the sum of its proper divisors (30074310).

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

20087802 is a wasteful number, since it uses less digits than its factorization.

20087802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363 (or 1360 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 20087802 is about 4481.9417666900. The cubic root of 20087802 is about 271.8384006222.

The spelling of 20087802 in words is "twenty million, eighty-seven thousand, eight hundred two".