2100040263 has 12 divisors (see below), whose sum is σ = 3145739688. Its totient is φ = 1400026680.

The previous prime is 2100040259. The next prime is 2100040273. The reversal of 2100040263 is 3620400012.

It is a happy number.

It is not a de Polignac number, because 2100040263 - 2² = 2100040259 is a prime.

It is a super-2 number, since 2×2100040263² = 8820338212442218338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100040273) 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, 4320828 + ... + 4321313.

It is an arithmetic number, because the mean of its divisors is an integer number (262144974).

Almost surely, 2^2100040263 is an apocalyptic number.

2100040263 is a deficient number, since it is larger than the sum of its proper divisors (1045699425).

2100040263 is an frugal number, since it uses more digits than its factorization.

2100040263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8642156 (or 8642144 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2100040263 is about 45826.1962527985. The cubic root of 2100040263 is about 1280.5873490557.

Adding to 2100040263 its reverse (3620400012), we get a palindrome (5720440275).

The spelling of 2100040263 in words is "two billion, one hundred million, forty thousand, two hundred sixty-three".