1200353280 has 208 divisors, whose sum is σ = 4390900224. Its totient is φ = 274268160.

The previous prime is 1200353251. The next prime is 1200353281. The reversal of 1200353280 is 823530021.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1200353280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200353281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 428685 + ... + 431475.

Almost surely, 2^1200353280 is an apocalyptic number.

1200353280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1200353280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2195450112).

1200353280 is an abundant number, since it is smaller than the sum of its proper divisors (3190546944).

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

1200353280 is an equidigital number, since it uses as much as digits as its factorization.

1200353280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2830 (or 2808 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1200353280 is about 34646.1149337123. The cubic root of 1200353280 is about 1062.7628411783.

The spelling of 1200353280 in words is "one billion, two hundred million, three hundred fifty-three thousand, two hundred eighty".