1501280 has 48 divisors (see below), whose sum is σ = 3873744. Its totient is φ = 545280.

The previous prime is 1501261. The next prime is 1501303. The reversal of 1501280 is 821051.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1334 + ... + 2186.

It is an arithmetic number, because the mean of its divisors is an integer number (80703).

2^1501280 is an apocalyptic number.

1501280 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 1501280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1936872).

1501280 is an abundant number, since it is smaller than the sum of its proper divisors (2372464).

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

1501280 is a wasteful number, since it uses less digits than its factorization.

1501280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879 (or 871 counting only the distinct ones).

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

The square root of 1501280 is about 1225.2673177719. The cubic root of 1501280 is about 114.5039757587.

The spelling of 1501280 in words is "one million, five hundred one thousand, two hundred eighty".