10390540 has 12 divisors (see below), whose sum is σ = 21820176. Its totient is φ = 4156208.

The previous prime is 10390531. The next prime is 10390571. The reversal of 10390540 is 4509301.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259744 + ... + 259783.

It is an arithmetic number, because the mean of its divisors is an integer number (1818348).

Almost surely, 2^10390540 is an apocalyptic number.

10390540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10390540 is an abundant number, since it is smaller than the sum of its proper divisors (11429636).

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

10390540 is a wasteful number, since it uses less digits than its factorization.

10390540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519536 (or 519534 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 10390540 is about 3223.4360548955. The cubic root of 10390540 is about 218.2123733512.

Adding to 10390540 its reverse (4509301), we get a palindrome (14899841).

The spelling of 10390540 in words is "ten million, three hundred ninety thousand, five hundred forty".