2105252630 has 128 divisors (see below), whose sum is σ = 4590069120. Its totient is φ = 686776320.

The previous prime is 2105252533. The next prime is 2105252663. The reversal of 2105252630 is 362525012.

It is a super-2 number, since 2×2105252630² = 8864177272243833800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 2105252630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7600052 + ... + 7600328.

It is an arithmetic number, because the mean of its divisors is an integer number (35859915).

Almost surely, 2^2105252630 is an apocalyptic number.

2105252630 is an abundant number, since it is smaller than the sum of its proper divisors (2484816490).

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

2105252630 is a wasteful number, since it uses less digits than its factorization.

2105252630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 2105252630 is about 45883.0320488958. The cubic root of 2105252630 is about 1281.6459599353.

Adding to 2105252630 its reverse (362525012), we get a palindrome (2467777642).

The spelling of 2105252630 in words is "two billion, one hundred five million, two hundred fifty-two thousand, six hundred thirty".