1240204200 has 48 divisors (see below), whose sum is σ = 3844634880. Its totient is φ = 330720960.

The previous prime is 1240204193. The next prime is 1240204211. The reversal of 1240204200 is 24020421.

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 1240204200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1032904 + ... + 1034103.

It is an arithmetic number, because the mean of its divisors is an integer number (80096560).

Almost surely, 2^1240204200 is an apocalyptic number.

1240204200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1240204200 is an abundant number, since it is smaller than the sum of its proper divisors (2604430680).

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

1240204200 is a wasteful number, since it uses less digits than its factorization.

1240204200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2067026 (or 2067017 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 1240204200 is about 35216.5330491234. The cubic root of 1240204200 is about 1074.3960407709.

Adding to 1240204200 its reverse (24020421), we get a palindrome (1264224621).

The spelling of 1240204200 in words is "one billion, two hundred forty million, two hundred four thousand, two hundred".