10388440 has 32 divisors (see below), whose sum is σ = 24606000. Its totient is φ = 3936384.

The previous prime is 10388419. The next prime is 10388447. The reversal of 10388440 is 4488301.

10388440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 10388399 and 10388408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10388447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6075 + ... + 7594.

Almost surely, 2^10388440 is an apocalyptic number.

10388440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10388440 is an abundant number, since it is smaller than the sum of its proper divisors (14217560).

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

10388440 is a wasteful number, since it uses less digits than its factorization.

10388440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13699 (or 13695 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 10388440 is about 3223.1102990745. The cubic root of 10388440 is about 218.1976716174.

The spelling of 10388440 in words is "ten million, three hundred eighty-eight thousand, four hundred forty".