1236228512 has 48 divisors (see below), whose sum is σ = 2477200320. Its totient is φ = 607191552.

The previous prime is 1236228503. The next prime is 1236228517. The reversal of 1236228512 is 2158226321.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (1236228517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462893 + ... + 465555.

It is an arithmetic number, because the mean of its divisors is an integer number (51608340).

Almost surely, 2^1236228512 is an apocalyptic number.

It is an amenable number.

1236228512 is an abundant number, since it is smaller than the sum of its proper divisors (1240971808).

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

1236228512 is a wasteful number, since it uses less digits than its factorization.

1236228512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2925 (or 2917 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 1236228512 is about 35160.0414106696. The cubic root of 1236228512 is about 1073.2467580166.

The spelling of 1236228512 in words is "one billion, two hundred thirty-six million, two hundred twenty-eight thousand, five hundred twelve".