102440022 has 32 divisors (see below), whose sum is σ = 214299648. Its totient is φ = 32583936.

The previous prime is 102440021. The next prime is 102440069. The reversal of 102440022 is 220044201.

It is a junction number, because it is equal to n+sod(n) for n = 102439983 and 102440010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102440021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92323 + ... + 93425.

It is an arithmetic number, because the mean of its divisors is an integer number (6696864).

Almost surely, 2^102440022 is an apocalyptic number.

102440022 is an abundant number, since it is smaller than the sum of its proper divisors (111859626).

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

102440022 is a wasteful number, since it uses less digits than its factorization.

102440022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1804.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 102440022 is about 10121.2658299246. The cubic root of 102440022 is about 467.9037807157.

Adding to 102440022 its reverse (220044201), we get a palindrome (322484223).

The spelling of 102440022 in words is "one hundred two million, four hundred forty thousand, twenty-two".