1224780680 has 32 divisors (see below), whose sum is σ = 2781048600. Its totient is φ = 485415936.

The previous prime is 1224780677. The next prime is 1224780719. The reversal of 1224780680 is 860874221.

It can be written as a sum of positive squares in 4 ways, for example, as 1160492356 + 64288324 = 34066^2 + 8018^2 .

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, 136097 + ... + 144816.

Almost surely, 2^1224780680 is an apocalyptic number.

1224780680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1224780680 is an abundant number, since it is smaller than the sum of its proper divisors (1556267920).

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

1224780680 is a wasteful number, since it uses less digits than its factorization.

1224780680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281033 (or 281029 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 1224780680 is about 34996.8667168934. The cubic root of 1224780680 is about 1069.9236210656.

The spelling of 1224780680 in words is "one billion, two hundred twenty-four million, seven hundred eighty thousand, six hundred eighty".