1200783040 has 28 divisors (see below), whose sum is σ = 2859365376. Its totient is φ = 480313088.

The previous prime is 1200783037. The next prime is 1200783061. The reversal of 1200783040 is 403870021.

It is a junction number, because it is equal to n+sod(n) for n = 1200782996 and 1200783014.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1875904 + ... + 1876543.

It is an arithmetic number, because the mean of its divisors is an integer number (102120192).

Almost surely, 2^1200783040 is an apocalyptic number.

1200783040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200783040 is an abundant number, since it is smaller than the sum of its proper divisors (1658582336).

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

1200783040 is an equidigital number, since it uses as much as digits as its factorization.

1200783040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3752464 (or 3752454 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 1200783040 is about 34652.3165170815. The cubic root of 1200783040 is about 1062.8896589714.

The spelling of 1200783040 in words is "one billion, two hundred million, seven hundred eighty-three thousand, forty".