2821373436 has 48 divisors (see below), whose sum is σ = 7546063616. Its totient is φ = 803706624.

The previous prime is 2821373393. The next prime is 2821373437. The reversal of 2821373436 is 6343731282.

It is a junction number, because it is equal to n+sod(n) for n = 2821373394 and 2821373403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2821373437) 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, 21526 + ... + 78141.

Almost surely, 2^2821373436 is an apocalyptic number.

It is an amenable number.

2821373436 is an abundant number, since it is smaller than the sum of its proper divisors (4724690180).

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

2821373436 is a wasteful number, since it uses less digits than its factorization.

2821373436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100018 (or 100016 counting only the distinct ones).

The product of its digits is 145152, while the sum is 39.

The square root of 2821373436 is about 53116.6022633225. The cubic root of 2821373436 is about 1413.0369689547.

The spelling of 2821373436 in words is "two billion, eight hundred twenty-one million, three hundred seventy-three thousand, four hundred thirty-six".