2038481021 has 4 divisors (see below), whose sum is σ = 2108773500. Its totient is φ = 1968188544.

The previous prime is 2038480993. The next prime is 2038481023. The reversal of 2038481021 is 1201848302.

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 923856025 + 1114624996 = 30395^2 + 33386^2 .

It is a cyclic number.

It is not a de Polignac number, because 2038481021 - 2¹⁰ = 2038479997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 70292449 = 2038481021 / (2 + 0 + 3 + 8 + 4 + 8 + 1 + 0 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2038481023) 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, 35146196 + ... + 35146253.

It is an arithmetic number, because the mean of its divisors is an integer number (527193375).

Almost surely, 2^2038481021 is an apocalyptic number.

It is an amenable number.

2038481021 is a deficient number, since it is larger than the sum of its proper divisors (70292479).

2038481021 is an equidigital number, since it uses as much as digits as its factorization.

2038481021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70292478.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 2038481021 is about 45149.5406510410. The cubic root of 2038481021 is about 1267.9502805441.

The spelling of 2038481021 in words is "two billion, thirty-eight million, four hundred eighty-one thousand, twenty-one".