105421376 has 56 divisors (see below), whose sum is σ = 216383616. Its totient is φ = 50931200.

The previous prime is 105421361. The next prime is 105421387. The reversal of 105421376 is 673124501.

It is a super-2 number, since 2×105421376² = 22227333035466752, which contains 22 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303635 + ... + 303981.

Almost surely, 2^105421376 is an apocalyptic number.

105421376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105421376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108191808).

105421376 is an abundant number, since it is smaller than the sum of its proper divisors (110962240).

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

105421376 is a wasteful number, since it uses less digits than its factorization.

105421376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 105421376 is about 10267.4912222996. The cubic root of 105421376 is about 472.3996423757.

Adding to 105421376 its reverse (673124501), we get a palindrome (778545877).

The spelling of 105421376 in words is "one hundred five million, four hundred twenty-one thousand, three hundred seventy-six".