1200233400 has 48 divisors (see below), whose sum is σ = 3720725400. Its totient is φ = 320062080.

The previous prime is 1200233393. The next prime is 1200233413. The reversal of 1200233400 is 43320021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1200233400.

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, 999595 + ... + 1000794.

Almost surely, 2^1200233400 is an apocalyptic number.

1200233400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200233400 is an abundant number, since it is smaller than the sum of its proper divisors (2520492000).

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

1200233400 is a wasteful number, since it uses less digits than its factorization.

1200233400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000408 (or 2000399 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1200233400 is about 34644.3848264044. The cubic root of 1200233400 is about 1062.7274604136.

Adding to 1200233400 its reverse (43320021), we get a palindrome (1243553421).

The spelling of 1200233400 in words is "one billion, two hundred million, two hundred thirty-three thousand, four hundred".