2029962821 has 4 divisors (see below), whose sum is σ = 2030239692. Its totient is φ = 2029685952.

The previous prime is 2029962817. The next prime is 2029962829. The reversal of 2029962821 is 1282699202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 422754721 + 1607208100 = 20561^2 + 40090^2 .

It is a cyclic number.

It is not a de Polignac number, because 2029962821 - 2² = 2029962817 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2029962829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127130 + ... + 142203.

It is an arithmetic number, because the mean of its divisors is an integer number (507559923).

Almost surely, 2^2029962821 is an apocalyptic number.

It is an amenable number.

2029962821 is a deficient number, since it is larger than the sum of its proper divisors (276871).

2029962821 is an equidigital number, since it uses as much as digits as its factorization.

2029962821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276870.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 2029962821 is about 45055.1087114436. The cubic root of 2029962821 is about 1266.1816869653.

The spelling of 2029962821 in words is "two billion, twenty-nine million, nine hundred sixty-two thousand, eight hundred twenty-one".