10240420 has 12 divisors (see below), whose sum is σ = 21504924. Its totient is φ = 4096160.

The previous prime is 10240397. The next prime is 10240423. The reversal of 10240420 is 2404201.

It can be written as a sum of positive squares in 2 ways, for example, as 7086244 + 3154176 = 2662^2 + 1776^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10240420.

It is not an unprimeable number, because it can be changed into a prime (10240423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255991 + ... + 256030.

It is an arithmetic number, because the mean of its divisors is an integer number (1792077).

Almost surely, 2^10240420 is an apocalyptic number.

10240420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10240420 is an abundant number, since it is smaller than the sum of its proper divisors (11264504).

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

10240420 is a wasteful number, since it uses less digits than its factorization.

10240420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512030 (or 512028 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 10240420 is about 3200.0656243271. The cubic root of 10240420 is about 217.1563781813.

Adding to 10240420 its reverse (2404201), we get a palindrome (12644621).

The spelling of 10240420 in words is "ten million, two hundred forty thousand, four hundred twenty".