102422730 has 32 divisors (see below), whose sum is σ = 258753600. Its totient is φ = 25875072.

The previous prime is 102422701. The next prime is 102422731. The reversal of 102422730 is 37224201.

It is a junction number, because it is equal to n+sod(n) for n = 102422697 and 102422706.

It is not an unprimeable number, because it can be changed into a prime (102422731) 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, 89275 + ... + 90414.

It is an arithmetic number, because the mean of its divisors is an integer number (8086050).

Almost surely, 2^102422730 is an apocalyptic number.

102422730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102422730 is an abundant number, since it is smaller than the sum of its proper divisors (156330870).

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

102422730 is a wasteful number, since it uses less digits than its factorization.

102422730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179718.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 102422730 is about 10120.4115528965. The cubic root of 102422730 is about 467.8774516589.

Adding to 102422730 its reverse (37224201), we get a palindrome (139646931).

The spelling of 102422730 in words is "one hundred two million, four hundred twenty-two thousand, seven hundred thirty".