10531420 has 12 divisors (see below), whose sum is σ = 22116024. Its totient is φ = 4212560.

The previous prime is 10531373. The next prime is 10531429. The reversal of 10531420 is 2413501.

It is a super-2 number, since 2×10531420² = 221821614432800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10531394 and 10531403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10531429) 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, 263266 + ... + 263305.

It is an arithmetic number, because the mean of its divisors is an integer number (1843002).

Almost surely, 2^10531420 is an apocalyptic number.

10531420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10531420 is an abundant number, since it is smaller than the sum of its proper divisors (11584604).

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

10531420 is a wasteful number, since it uses less digits than its factorization.

10531420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526580 (or 526578 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 10531420 is about 3245.2149389524. The cubic root of 10531420 is about 219.1941593183.

Adding to 10531420 its reverse (2413501), we get a palindrome (12944921).

The spelling of 10531420 in words is "ten million, five hundred thirty-one thousand, four hundred twenty".