2029748261 has 4 divisors (see below), whose sum is σ = 2068045452. Its totient is φ = 1991451072.

The previous prime is 2029748249. The next prime is 2029748263. The reversal of 2029748261 is 1628479202.

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 723287236 + 1306461025 = 26894^2 + 36145^2 .

It is a cyclic number.

It is not a de Polignac number, because 2029748261 - 2⁶ = 2029748197 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 (2029748263) 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, 19148516 + ... + 19148621.

It is an arithmetic number, because the mean of its divisors is an integer number (517011363).

Almost surely, 2^2029748261 is an apocalyptic number.

It is an amenable number.

2029748261 is a deficient number, since it is larger than the sum of its proper divisors (38297191).

2029748261 is an equidigital number, since it uses as much as digits as its factorization.

2029748261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38297190.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 2029748261 is about 45052.7275644883. The cubic root of 2029748261 is about 1266.1370750621.

The spelling of 2029748261 in words is "two billion, twenty-nine million, seven hundred forty-eight thousand, two hundred sixty-one".