839413020 has 48 divisors (see below), whose sum is σ = 2373644448. Its totient is φ = 221625600.

The previous prime is 839413013. The next prime is 839413039. The reversal of 839413020 is 20314938.

It is a super-2 number, since 2×839413020² = 1409228436291040800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63199 + ... + 75318.

It is an arithmetic number, because the mean of its divisors is an integer number (49450926).

Almost surely, 2^839413020 is an apocalyptic number.

It is an amenable number.

839413020 is an abundant number, since it is smaller than the sum of its proper divisors (1534231428).

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

839413020 is a wasteful number, since it uses less digits than its factorization.

839413020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138630 (or 138628 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 839413020 is about 28972.6253556698. The cubic root of 839413020 is about 943.3189677072.

Adding to 839413020 its reverse (20314938), we get a palindrome (859727958).

The spelling of 839413020 in words is "eight hundred thirty-nine million, four hundred thirteen thousand, twenty".