1015280 has 80 divisors (see below), whose sum is σ = 2827200. Its totient is φ = 338688.

The previous prime is 1015277. The next prime is 1015309. The reversal of 1015280 is 825101.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27422 + ... + 27458.

It is an arithmetic number, because the mean of its divisors is an integer number (35340).

2^1015280 is an apocalyptic number.

1015280 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 1015280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1413600).

1015280 is an abundant number, since it is smaller than the sum of its proper divisors (1811920).

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

1015280 is an equidigital number, since it uses as much as digits as its factorization.

1015280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 1015280 is about 1007.6110360650. The cubic root of 1015280 is about 100.5067609290.

The spelling of 1015280 in words is "one million, fifteen thousand, two hundred eighty".