1233072520 has 16 divisors (see below), whose sum is σ = 2774413260. Its totient is φ = 493228992.

The previous prime is 1233072457. The next prime is 1233072541. The reversal of 1233072520 is 252703321.

It can be written as a sum of positive squares in 2 ways, for example, as 1232992996 + 79524 = 35114^2 + 282^2 .

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, 15413367 + ... + 15413446.

Almost surely, 2^1233072520 is an apocalyptic number.

1233072520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1233072520 is an abundant number, since it is smaller than the sum of its proper divisors (1541340740).

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

1233072520 is a wasteful number, since it uses less digits than its factorization.

1233072520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30826824 (or 30826820 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 1233072520 is about 35115.1323505978. The cubic root of 1233072520 is about 1072.3326754865.

Adding to 1233072520 its reverse (252703321), we get a palindrome (1485775841).

The spelling of 1233072520 in words is "one billion, two hundred thirty-three million, seventy-two thousand, five hundred twenty".