1203256872 has 144 divisors (see below), whose sum is σ = 3565647540. Its totient is φ = 365036544.

The previous prime is 1203256867. The next prime is 1203256919. The reversal of 1203256872 is 2786523021.

1203256872 is a `hidden beast` number, since 1 + 20 + 3 + 2 + 568 + 72 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1041611076 + 161645796 = 32274^2 + 12714^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7381863 + ... + 7382025.

Almost surely, 2^1203256872 is an apocalyptic number.

1203256872 is a gapful number since it is divisible by the number (12) 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 1203256872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1782823770).

1203256872 is an abundant number, since it is smaller than the sum of its proper divisors (2362390668).

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

1203256872 is a wasteful number, since it uses less digits than its factorization.

1203256872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 1203256872 is about 34687.9931964938. The cubic root of 1203256872 is about 1063.6190737890.

Adding to 1203256872 its reverse (2786523021), we get a palindrome (3989779893).

The spelling of 1203256872 in words is "one billion, two hundred three million, two hundred fifty-six thousand, eight hundred seventy-two".