10191280 has 80 divisors (see below), whose sum is σ = 26632224. Its totient is φ = 3594240.

The previous prime is 10191271. The next prime is 10191287. The reversal of 10191280 is 8219101.

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

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (10191287) 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, 32404 + ... + 32716.

Almost surely, 2^10191280 is an apocalyptic number.

10191280 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 10191280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13316112).

10191280 is an abundant number, since it is smaller than the sum of its proper divisors (16440944).

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

10191280 is a wasteful number, since it uses less digits than its factorization.

10191280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 368 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 10191280 is about 3192.3784236835. The cubic root of 10191280 is about 216.8084699604.

The spelling of 10191280 in words is "ten million, one hundred ninety-one thousand, two hundred eighty".