10431440 has 40 divisors (see below), whose sum is σ = 24560928. Its totient is φ = 4119680.

The previous prime is 10431439. The next prime is 10431451. The reversal of 10431440 is 4413401.

It is a tau number, because it is divible by the number of its divisors (40).

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5855 + ... + 7425.

Almost surely, 2^10431440 is an apocalyptic number.

10431440 is a gapful number since it is divisible by the number (10) 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 10431440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12280464).

10431440 is an abundant number, since it is smaller than the sum of its proper divisors (14129488).

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

10431440 is a wasteful number, since it uses less digits than its factorization.

10431440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667 (or 1661 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 10431440 is about 3229.7739859006. The cubic root of 10431440 is about 218.4983129767.

Adding to 10431440 its reverse (4413401), we get a palindrome (14844841).

The spelling of 10431440 in words is "ten million, four hundred thirty-one thousand, four hundred forty".