105023420 has 24 divisors (see below), whose sum is σ = 221438448. Its totient is φ = 41840000.

The previous prime is 105023419. The next prime is 105023437. The reversal of 105023420 is 24320501.

It is a super-2 number, since 2×105023420² = 22059837496992800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5441 + ... + 15480.

It is an arithmetic number, because the mean of its divisors is an integer number (9226602).

Almost surely, 2^105023420 is an apocalyptic number.

105023420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105023420 is an abundant number, since it is smaller than the sum of its proper divisors (116415028).

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

105023420 is a wasteful number, since it uses less digits than its factorization.

105023420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21181 (or 21179 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 105023420 is about 10248.0934812286. The cubic root of 105023420 is about 471.8044711045.

Adding to 105023420 its reverse (24320501), we get a palindrome (129343921).

The spelling of 105023420 in words is "one hundred five million, twenty-three thousand, four hundred twenty".