102424220 has 12 divisors (see below), whose sum is σ = 215090904. Its totient is φ = 40969680.

The previous prime is 102424213. The next prime is 102424229. The reversal of 102424220 is 22424201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102424229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2560586 + ... + 2560625.

It is an arithmetic number, because the mean of its divisors is an integer number (17924242).

Almost surely, 2^102424220 is an apocalyptic number.

102424220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102424220 is an abundant number, since it is smaller than the sum of its proper divisors (112666684).

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

102424220 is a wasteful number, since it uses less digits than its factorization.

102424220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5121220 (or 5121218 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 102424220 is about 10120.4851662359. The cubic root of 102424220 is about 467.8797204718.

Adding to 102424220 its reverse (22424201), we get a palindrome (124848421).

The spelling of 102424220 in words is "one hundred two million, four hundred twenty-four thousand, two hundred twenty".