2034728021 has 2 divisors, whose sum is σ = 2034728022. Its totient is φ = 2034728020.

The previous prime is 2034727987. The next prime is 2034728027. The reversal of 2034728021 is 1208274302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1654048900 + 380679121 = 40670^2 + 19511^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2034728021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2034728027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1017364010 + 1017364011.

It is an arithmetic number, because the mean of its divisors is an integer number (1017364011).

Almost surely, 2^2034728021 is an apocalyptic number.

It is an amenable number.

2034728021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2034728021 is an equidigital number, since it uses as much as digits as its factorization.

2034728021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 2034728021 is about 45107.9596191182. The cubic root of 2034728021 is about 1267.1716712641.

The spelling of 2034728021 in words is "two billion, thirty-four million, seven hundred twenty-eight thousand, twenty-one".