105249672 has 96 divisors (see below), whose sum is σ = 321434400. Its totient is φ = 31885920.

The previous prime is 105249667. The next prime is 105249689. The reversal of 105249672 is 276942501.

It is a super-2 number, since 2×105249672² = 22154986912215168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24123 + ... + 28149.

It is an arithmetic number, because the mean of its divisors is an integer number (3348275).

Almost surely, 2^105249672 is an apocalyptic number.

105249672 is a gapful number since it is divisible by the number (12) 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 105249672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160717200).

105249672 is an abundant number, since it is smaller than the sum of its proper divisors (216184728).

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

105249672 is a wasteful number, since it uses less digits than its factorization.

105249672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4064 (or 4043 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 105249672 is about 10259.1262785873. The cubic root of 105249672 is about 472.1430309609.

The spelling of 105249672 in words is "one hundred five million, two hundred forty-nine thousand, six hundred seventy-two".