2021333004 has 36 divisors (see below), whose sum is σ = 5135972296. Its totient is φ = 670284288.

The previous prime is 2021333003. The next prime is 2021333011. The reversal of 2021333004 is 4003331202.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×2021333004² = 8171574226119328032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2021333003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138514 + ... + 152409.

Almost surely, 2^2021333004 is an apocalyptic number.

It is an amenable number.

2021333004 is an abundant number, since it is smaller than the sum of its proper divisors (3114639292).

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

2021333004 is a wasteful number, since it uses less digits than its factorization.

2021333004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291126 (or 291121 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 2021333004 is about 44959.2371376562. The cubic root of 2021333004 is about 1264.3848663459.

Adding to 2021333004 its reverse (4003331202), we get a palindrome (6024664206).

The spelling of 2021333004 in words is "two billion, twenty-one million, three hundred thirty-three thousand, four".