105452440 has 16 divisors (see below), whose sum is σ = 237268080. Its totient is φ = 42180960.

The previous prime is 105452429. The next prime is 105452461. The reversal of 105452440 is 44254501.

It is a happy number.

It is a super-2 number, since 2×105452440² = 22240434203907200, 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1318116 + ... + 1318195.

It is an arithmetic number, because the mean of its divisors is an integer number (14829255).

Almost surely, 2^105452440 is an apocalyptic number.

105452440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105452440 is an abundant number, since it is smaller than the sum of its proper divisors (131815640).

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

105452440 is a wasteful number, since it uses less digits than its factorization.

105452440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2636322 (or 2636318 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 105452440 is about 10269.0038465277. The cubic root of 105452440 is about 472.4460377145.

The spelling of 105452440 in words is "one hundred five million, four hundred fifty-two thousand, four hundred forty".