2802021 has 8 divisors (see below), whose sum is σ = 3898560. Its totient is φ = 1786752.

The previous prime is 2802017. The next prime is 2802029. The reversal of 2802021 is 1202082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2802021 - 2² = 2802017 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2802029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20236 + ... + 20373.

It is an arithmetic number, because the mean of its divisors is an integer number (487320).

2^2802021 is an apocalyptic number.

It is an amenable number.

2802021 is a deficient number, since it is larger than the sum of its proper divisors (1096539).

2802021 is a wasteful number, since it uses less digits than its factorization.

2802021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40635.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2802021 is about 1673.9238333927. The cubic root of 2802021 is about 140.9798774161.

The spelling of 2802021 in words is "two million, eight hundred two thousand, twenty-one".