1280460 has 24 divisors (see below), whose sum is σ = 3585456. Its totient is φ = 341440.

The previous prime is 1280453. The next prime is 1280473. The reversal of 1280460 is 640821.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 16.

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, 10611 + ... + 10730.

It is an arithmetic number, because the mean of its divisors is an integer number (149394).

2^1280460 is an apocalyptic number.

1280460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1280460 is an abundant number, since it is smaller than the sum of its proper divisors (2304996).

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

1280460 is a wasteful number, since it uses less digits than its factorization.

1280460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21353 (or 21351 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1280460 is about 1131.5741248367. The cubic root of 1280460 is about 108.5897096904.

The spelling of 1280460 in words is "one million, two hundred eighty thousand, four hundred sixty".