22102434 has 24 divisors (see below), whose sum is σ = 50409840. Its totient is φ = 6979608.

The previous prime is 22102427. The next prime is 22102439. The reversal of 22102434 is 43420122.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22102439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31972 + ... + 32655.

It is an arithmetic number, because the mean of its divisors is an integer number (2100410).

Almost surely, 2^22102434 is an apocalyptic number.

22102434 is an abundant number, since it is smaller than the sum of its proper divisors (28307406).

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

22102434 is a wasteful number, since it uses less digits than its factorization.

22102434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64654 (or 64651 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 22102434 is about 4701.3225798705. The cubic root of 22102434 is about 280.6381448465.

Adding to 22102434 its reverse (43420122), we get a palindrome (65522556).

The spelling of 22102434 in words is "twenty-two million, one hundred two thousand, four hundred thirty-four".