102243040 has 48 divisors (see below), whose sum is σ = 242373600. Its totient is φ = 40757760.

The previous prime is 102243019. The next prime is 102243059. The reversal of 102243040 is 40342201.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54925 + ... + 56755.

It is an arithmetic number, because the mean of its divisors is an integer number (5049450).

Almost surely, 2^102243040 is an apocalyptic number.

102243040 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 102243040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121186800).

102243040 is an abundant number, since it is smaller than the sum of its proper divisors (140130560).

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

102243040 is a wasteful number, since it uses less digits than its factorization.

102243040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2195 (or 2187 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 102243040 is about 10111.5300523709. The cubic root of 102243040 is about 467.6036774261.

Adding to 102243040 its reverse (40342201), we get a palindrome (142585241).

The spelling of 102243040 in words is "one hundred two million, two hundred forty-three thousand, forty".