1020538806 has 32 divisors (see below), whose sum is σ = 2365521408. Its totient is φ = 287474880.

The previous prime is 1020538801. The next prime is 1020538807. The reversal of 1020538806 is 6088350201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020538801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168135 + ... + 174098.

It is an arithmetic number, because the mean of its divisors is an integer number (73922544).

Almost surely, 2^1020538806 is an apocalyptic number.

1020538806 is an abundant number, since it is smaller than the sum of its proper divisors (1344982602).

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

1020538806 is a wasteful number, since it uses less digits than its factorization.

1020538806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342316.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 1020538806 is about 31945.8730667985. The cubic root of 1020538806 is about 1006.7999248811.

The spelling of 1020538806 in words is "one billion, twenty million, five hundred thirty-eight thousand, eight hundred six".