10123240 has 16 divisors (see below), whose sum is σ = 22777380. Its totient is φ = 4049280.

The previous prime is 10123207. The next prime is 10123241. The reversal of 10123240 is 4232101.

It can be written as a sum of positive squares in 2 ways, for example, as 8726116 + 1397124 = 2954^2 + 1182^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10123240.

It is not an unprimeable number, because it can be changed into a prime (10123241) 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, 126501 + ... + 126580.

Almost surely, 2^10123240 is an apocalyptic number.

10123240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10123240 is an abundant number, since it is smaller than the sum of its proper divisors (12654140).

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

10123240 is a wasteful number, since it uses less digits than its factorization.

10123240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253092 (or 253088 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 10123240 is about 3181.7039460013. The cubic root of 10123240 is about 216.3248997124.

Adding to 10123240 its reverse (4232101), we get a palindrome (14355341).

The spelling of 10123240 in words is "ten million, one hundred twenty-three thousand, two hundred forty".