1224680 has 32 divisors (see below), whose sum is σ = 2919240. Its totient is φ = 460800.

The previous prime is 1224677. The next prime is 1224701. The reversal of 1224680 is 864221.

It can be written as a sum of positive squares in 4 ways, for example, as 917764 + 306916 = 958^2 + 554^2 .

It is a super-2 number, since 2×1224680² = 2999682204800, 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, 221 + ... + 1580.

2^1224680 is an apocalyptic number.

1224680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1224680 is an abundant number, since it is smaller than the sum of its proper divisors (1694560).

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

1224680 is a wasteful number, since it uses less digits than its factorization.

1224680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829 (or 1825 counting only the distinct ones).

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

The square root of 1224680 is about 1106.6526103525. The cubic root of 1224680 is about 106.9894303473.

The spelling of 1224680 in words is "one million, two hundred twenty-four thousand, six hundred eighty".