105505420 has 12 divisors (see below), whose sum is σ = 221561424. Its totient is φ = 42202160.

The previous prime is 105505409. The next prime is 105505427. The reversal of 105505420 is 24505501.

It is a super-2 number, since 2×105505420² = 22262787298752800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105505391 and 105505400.

It is not an unprimeable number, because it can be changed into a prime (105505427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2637616 + ... + 2637655.

It is an arithmetic number, because the mean of its divisors is an integer number (18463452).

Almost surely, 2^105505420 is an apocalyptic number.

105505420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105505420 is an abundant number, since it is smaller than the sum of its proper divisors (116056004).

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

105505420 is a wasteful number, since it uses less digits than its factorization.

105505420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5275280 (or 5275278 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 105505420 is about 10271.5831301703. The cubic root of 105505420 is about 472.5251444678.

The spelling of 105505420 in words is "one hundred five million, five hundred five thousand, four hundred twenty".