2101442399 has 16 divisors (see below), whose sum is σ = 2498233920. Its totient is φ = 1729486080.

The previous prime is 2101442383. The next prime is 2101442411. The reversal of 2101442399 is 9932441012.

It is not a de Polignac number, because 2101442399 - 2⁴ = 2101442383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101442339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8147 + ... + 65339.

It is an arithmetic number, because the mean of its divisors is an integer number (156139620).

Almost surely, 2^2101442399 is an apocalyptic number.

2101442399 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2101442399 is a deficient number, since it is larger than the sum of its proper divisors (396791521).

2101442399 is a wasteful number, since it uses less digits than its factorization.

2101442399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57410.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 2101442399 is about 45841.4921114049. The cubic root of 2101442399 is about 1280.8722893318.

The spelling of 2101442399 in words is "two billion, one hundred one million, four hundred forty-two thousand, three hundred ninety-nine".