105489372 has 12 divisors (see below), whose sum is σ = 246141896. Its totient is φ = 35163120.

The previous prime is 105489359. The next prime is 105489383. The reversal of 105489372 is 273984501.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×105489372² = 22256015209908768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105489372.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4395379 + ... + 4395402.

Almost surely, 2^105489372 is an apocalyptic number.

105489372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

105489372 is an abundant number, since it is smaller than the sum of its proper divisors (140652524).

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

105489372 is a wasteful number, since it uses less digits than its factorization.

105489372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8790788 (or 8790786 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 105489372 is about 10270.8019161115. The cubic root of 105489372 is about 472.5011852942.

The spelling of 105489372 in words is "one hundred five million, four hundred eighty-nine thousand, three hundred seventy-two".