10381280 has 192 divisors, whose sum is σ = 32514048. Its totient is φ = 3041280.

The previous prime is 10381279. The next prime is 10381291. The reversal of 10381280 is 8218301.

10381280 = T₁₁₆₉ + T₁₁₇₀ + ... + T₁₁₈₃.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 334865 + ... + 334895.

It is an arithmetic number, because the mean of its divisors is an integer number (169344).

Almost surely, 2^10381280 is an apocalyptic number.

10381280 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 10381280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16257024).

10381280 is an abundant number, since it is smaller than the sum of its proper divisors (22132768).

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

10381280 is a wasteful number, since it uses less digits than its factorization.

10381280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 10381280 is about 3221.9993792675. Note that the first 3 decimals coincide. The cubic root of 10381280 is about 218.1475308073.

Adding to 10381280 its reverse (8218301), we get a palindrome (18599581).

The spelling of 10381280 in words is "ten million, three hundred eighty-one thousand, two hundred eighty".