10520440 has 32 divisors (see below), whose sum is σ = 27053280. Its totient is φ = 3606912.

The previous prime is 10520431. The next prime is 10520449. The reversal of 10520440 is 4402501.

It is an interprime number because it is at equal distance from previous prime (10520431) and next prime (10520449).

It is a super-2 number, since 2×10520440² = 221359315587200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10520449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18507 + ... + 19066.

It is an arithmetic number, because the mean of its divisors is an integer number (845415).

Almost surely, 2^10520440 is an apocalyptic number.

10520440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10520440 is an abundant number, since it is smaller than the sum of its proper divisors (16532840).

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

10520440 is a wasteful number, since it uses less digits than its factorization.

10520440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37591 (or 37587 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 10520440 is about 3243.5227762419. The cubic root of 10520440 is about 219.1179559581.

Adding to 10520440 its reverse (4402501), we get a palindrome (14922941).

The spelling of 10520440 in words is "ten million, five hundred twenty thousand, four hundred forty".