102620244 has 12 divisors (see below), whose sum is σ = 239447264. Its totient is φ = 34206744.

The previous prime is 102620209. The next prime is 102620251. The reversal of 102620244 is 442026201.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 102620244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4275832 + ... + 4275855.

Almost surely, 2^102620244 is an apocalyptic number.

It is an amenable number.

102620244 is an abundant number, since it is smaller than the sum of its proper divisors (136827020).

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

102620244 is a wasteful number, since it uses less digits than its factorization.

102620244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8551694 (or 8551692 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 102620244 is about 10130.1650529495. The cubic root of 102620244 is about 468.1780132214.

Adding to 102620244 its reverse (442026201), we get a palindrome (544646445).

The spelling of 102620244 in words is "one hundred two million, six hundred twenty thousand, two hundred forty-four".