10145440 has 24 divisors (see below), whose sum is σ = 23968980. Its totient is φ = 4058112.

The previous prime is 10145423. The next prime is 10145477. The reversal of 10145440 is 4454101.

It can be written as a sum of positive squares in 2 ways, for example, as 9072144 + 1073296 = 3012^2 + 1036^2 .

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, 31545 + ... + 31864.

Almost surely, 2^10145440 is an apocalyptic number.

10145440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10145440 is an abundant number, since it is smaller than the sum of its proper divisors (13823540).

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

10145440 is an equidigital number, since it uses as much as digits as its factorization.

10145440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63424 (or 63416 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 10145440 is about 3185.1907321226. The cubic root of 10145440 is about 216.4829158720.

Adding to 10145440 its reverse (4454101), we get a palindrome (14599541).

It can be divided in two parts, 10145 and 440, that added together give a triangular number (10585 = T₁₄₅).

The spelling of 10145440 in words is "ten million, one hundred forty-five thousand, four hundred forty".