2100626442 has 24 divisors (see below), whose sum is σ = 4628501280. Its totient is φ = 688340520.

The previous prime is 2100626441. The next prime is 2100626449. The reversal of 2100626442 is 2446260012.

2100626442 is a `hidden beast` number, since 2 + 10 + 0 + 6 + 2 + 644 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (2100626441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 987934 + ... + 990057.

It is an arithmetic number, because the mean of its divisors is an integer number (192854220).

Almost surely, 2^2100626442 is an apocalyptic number.

2100626442 is an abundant number, since it is smaller than the sum of its proper divisors (2527874838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2100626442 is a wasteful number, since it uses less digits than its factorization.

2100626442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1978058 (or 1978055 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 2100626442 is about 45832.5914824811. The cubic root of 2100626442 is about 1280.7064870222.

Adding to 2100626442 its reverse (2446260012), we get a palindrome (4546886454).

The spelling of 2100626442 in words is "two billion, one hundred million, six hundred twenty-six thousand, four hundred forty-two".