1200143040 has 56 divisors (see below), whose sum is σ = 3810457200. Its totient is φ = 320037888.

The previous prime is 1200143023. The next prime is 1200143053. The reversal of 1200143040 is 403410021.

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

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 7 ways as a sum of consecutive naturals, for example, 624115 + ... + 626034.

Almost surely, 2^1200143040 is an apocalyptic number.

1200143040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200143040 is an abundant number, since it is smaller than the sum of its proper divisors (2610314160).

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

1200143040 is a wasteful number, since it uses less digits than its factorization.

1200143040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250169 (or 1250159 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1200143040 is about 34643.0806944186. The cubic root of 1200143040 is about 1062.7007904722.

Adding to 1200143040 its reverse (403410021), we get a palindrome (1603553061).

The spelling of 1200143040 in words is "one billion, two hundred million, one hundred forty-three thousand, forty".