10512240 has 40 divisors (see below), whose sum is σ = 32588688. Its totient is φ = 2803200.

The previous prime is 10512221. The next prime is 10512241. The reversal of 10512240 is 4221501.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×10512240² = 221014379635200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10512241) 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, 21661 + ... + 22140.

Almost surely, 2^10512240 is an apocalyptic number.

10512240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10512240 is an abundant number, since it is smaller than the sum of its proper divisors (22076448).

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

10512240 is a wasteful number, since it uses less digits than its factorization.

10512240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43817 (or 43811 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 10512240 is about 3242.2584721148. The cubic root of 10512240 is about 219.0610117535.

Adding to 10512240 its reverse (4221501), we get a palindrome (14733741).

The spelling of 10512240 in words is "ten million, five hundred twelve thousand, two hundred forty".