102422538 has 24 divisors (see below), whose sum is σ = 225555876. Its totient is φ = 33580800.

The previous prime is 102422513. The next prime is 102422539. The reversal of 102422538 is 835224201.

102422538 is a `hidden beast` number, since 102 + 4 + 22 + 538 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 102272769 + 149769 = 10113^2 + 387^2 .

It is a super-2 number, since 2×102422538² = 20980752580722888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102422539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45543 + ... + 47738.

Almost surely, 2^102422538 is an apocalyptic number.

102422538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

102422538 is an abundant number, since it is smaller than the sum of its proper divisors (123133338).

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

102422538 is a wasteful number, since it uses less digits than its factorization.

102422538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93350 (or 93347 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 102422538 is about 10120.4020671118. The cubic root of 102422538 is about 467.8771593002.

Adding to 102422538 its reverse (835224201), we get a palindrome (937646739).

The spelling of 102422538 in words is "one hundred two million, four hundred twenty-two thousand, five hundred thirty-eight".