10631280 has 80 divisors (see below), whose sum is σ = 35961984. Its totient is φ = 2576640.

The previous prime is 10631261. The next prime is 10631281. The reversal of 10631280 is 8213601.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×10631280² = 226048228876800, which contains 22 as substring.

It is a zygodrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10631281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 627 + ... + 4653.

Almost surely, 2^10631280 is an apocalyptic number.

10631280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10631280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17980992).

10631280 is an abundant number, since it is smaller than the sum of its proper divisors (25330704).

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

10631280 is a wasteful number, since it uses less digits than its factorization.

10631280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4054 (or 4048 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 10631280 is about 3260.5643683264. The cubic root of 10631280 is about 219.8847881601.

Adding to 10631280 its reverse (8213601), we get a palindrome (18844881).

The spelling of 10631280 in words is "ten million, six hundred thirty-one thousand, two hundred eighty".