1223455580 has 24 divisors (see below), whose sum is σ = 2631923280. Its totient is φ = 477445760.

The previous prime is 1223455559. The next prime is 1223455591. The reversal of 1223455580 is 855543221.

It is a super-3 number, since 3×1223455580³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1223455580.

It is a congruent number.

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, 745190 + ... + 746829.

It is an arithmetic number, because the mean of its divisors is an integer number (109663470).

Almost surely, 2^1223455580 is an apocalyptic number.

1223455580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223455580 is an abundant number, since it is smaller than the sum of its proper divisors (1408467700).

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

1223455580 is a wasteful number, since it uses less digits than its factorization.

1223455580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492069 (or 1492067 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

The square root of 1223455580 is about 34977.9298987233. The cubic root of 1223455580 is about 1069.5376288591.

The spelling of 1223455580 in words is "one billion, two hundred twenty-three million, four hundred fifty-five thousand, five hundred eighty".