102247920 has 200 divisors, whose sum is σ = 367297920. Its totient is φ = 26334720.

The previous prime is 102247919. The next prime is 102247969. The reversal of 102247920 is 29742201.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 200626 + ... + 201134.

Almost surely, 2^102247920 is an apocalyptic number.

102247920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102247920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183648960).

102247920 is an abundant number, since it is smaller than the sum of its proper divisors (265050000).

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

102247920 is a wasteful number, since it uses less digits than its factorization.

102247920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565 (or 550 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 102247920 is about 10111.7713581746. The cubic root of 102247920 is about 467.6111167904.

The spelling of 102247920 in words is "one hundred two million, two hundred forty-seven thousand, nine hundred twenty".