1200532400 has 60 divisors (see below), whose sum is σ = 2889757752. Its totient is φ = 479301120.

The previous prime is 1200532393. The next prime is 1200532409. The reversal of 1200532400 is 42350021.

It is not an unprimeable number, because it can be changed into a prime (1200532409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 232244 + ... + 237356.

Almost surely, 2^1200532400 is an apocalyptic number.

1200532400 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 1200532400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1444878876).

1200532400 is an abundant number, since it is smaller than the sum of its proper divisors (1689225352).

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

1200532400 is a wasteful number, since it uses less digits than its factorization.

1200532400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5718 (or 5707 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1200532400 is about 34648.6998313068. The cubic root of 1200532400 is about 1062.8157013419.

Adding to 1200532400 its reverse (42350021), we get a palindrome (1242882421).

The spelling of 1200532400 in words is "one billion, two hundred million, five hundred thirty-two thousand, four hundred".