10389040 has 40 divisors (see below), whose sum is σ = 25578720. Its totient is φ = 3910656.

The previous prime is 10389037. The next prime is 10389089. The reversal of 10389040 is 4098301.

10389040 = T₁₂₉ + T₁₃₀ + ... + T₄₀₀.

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

It is a junction number, because it is equal to n+sod(n) for n = 10388996 and 10389014.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2460 + ... + 5179.

It is an arithmetic number, because the mean of its divisors is an integer number (639468).

Almost surely, 2^10389040 is an apocalyptic number.

10389040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10389040 is an abundant number, since it is smaller than the sum of its proper divisors (15189680).

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

10389040 is a wasteful number, since it uses less digits than its factorization.

10389040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7669 (or 7663 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 10389040 is about 3223.2033755257. The cubic root of 10389040 is about 218.2018723149.

The spelling of 10389040 in words is "ten million, three hundred eighty-nine thousand, forty".