2102502444 has 48 divisors (see below), whose sum is σ = 5641106688. Its totient is φ = 597025728.

The previous prime is 2102502439. The next prime is 2102502449. The reversal of 2102502444 is 4442052012.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2102502439) and next prime (2102502449).

It is not an unprimeable number, because it can be changed into a prime (2102502449) 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, 63087 + ... + 90470.

It is an arithmetic number, because the mean of its divisors is an integer number (117523056).

Almost surely, 2^2102502444 is an apocalyptic number.

It is an amenable number.

2102502444 is an abundant number, since it is smaller than the sum of its proper divisors (3538604244).

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

2102502444 is a wasteful number, since it uses less digits than its factorization.

2102502444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153734 (or 153732 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 2102502444 is about 45853.0527228013. The cubic root of 2102502444 is about 1281.0876261921.

Adding to 2102502444 its reverse (4442052012), we get a palindrome (6544554456).

The spelling of 2102502444 in words is "two billion, one hundred two million, five hundred two thousand, four hundred forty-four".