102443020 has 24 divisors (see below), whose sum is σ = 227785824. Its totient is φ = 38566656.

The previous prime is 102443009. The next prime is 102443021. The reversal of 102443020 is 20344201.

It is a junction number, because it is equal to n+sod(n) for n = 102442985 and 102443003.

It is not an unprimeable number, because it can be changed into a prime (102443021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150312 + ... + 150991.

It is an arithmetic number, because the mean of its divisors is an integer number (9491076).

Almost surely, 2^102443020 is an apocalyptic number.

102443020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102443020 is an abundant number, since it is smaller than the sum of its proper divisors (125342804).

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

102443020 is a wasteful number, since it uses less digits than its factorization.

102443020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301329 (or 301327 counting only the distinct ones).

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

The square root of 102443020 is about 10121.4139328455. The cubic root of 102443020 is about 467.9083452138.

Adding to 102443020 its reverse (20344201), we get a palindrome (122787221).

It can be divided in two parts, 1024 and 43020, that added together give a palindrome (44044).

The spelling of 102443020 in words is "one hundred two million, four hundred forty-three thousand, twenty".