1223580400 has 60 divisors (see below), whose sum is σ = 3359609872. Its totient is φ = 419512320.

The previous prime is 1223580359. The next prime is 1223580431. The reversal of 1223580400 is 40853221.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 215697 + ... + 221296.

Almost surely, 2^1223580400 is an apocalyptic number.

1223580400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223580400 is an abundant number, since it is smaller than the sum of its proper divisors (2136029472).

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

1223580400 is a wasteful number, since it uses less digits than its factorization.

1223580400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437018 (or 437007 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1223580400 is about 34979.7141211874. The cubic root of 1223580400 is about 1069.5739999241.

The spelling of 1223580400 in words is "one billion, two hundred twenty-three million, five hundred eighty thousand, four hundred".