1228460 has 24 divisors (see below), whose sum is σ = 2600640. Its totient is φ = 487424.

The previous prime is 1228459. The next prime is 1228489. The reversal of 1228460 is 648221.

It is a super-2 number, since 2×1228460² = 3018227943200, which contains 22 as substring.

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, 4652 + ... + 4908.

It is an arithmetic number, because the mean of its divisors is an integer number (108360).

2^1228460 is an apocalyptic number.

1228460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1228460 is an abundant number, since it is smaller than the sum of its proper divisors (1372180).

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

1228460 is a wasteful number, since it uses less digits than its factorization.

1228460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505 (or 503 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 1228460 is about 1108.3591475691. The cubic root of 1228460 is about 107.0993923170.

The spelling of 1228460 in words is "one million, two hundred twenty-eight thousand, four hundred sixty".