1225480 has 16 divisors (see below), whose sum is σ = 2757420. Its totient is φ = 490176.

The previous prime is 1225459. The next prime is 1225493. The reversal of 1225480 is 845221.

It can be written as a sum of positive squares in 2 ways, for example, as 1170724 + 54756 = 1082^2 + 234^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15279 + ... + 15358.

2^1225480 is an apocalyptic number.

1225480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1225480 is an abundant number, since it is smaller than the sum of its proper divisors (1531940).

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

1225480 is a wasteful number, since it uses less digits than its factorization.

1225480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30648 (or 30644 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 1225480 is about 1107.0140017181. The cubic root of 1225480 is about 107.0127215782.

The spelling of 1225480 in words is "one million, two hundred twenty-five thousand, four hundred eighty".