1220272752 has 40 divisors (see below), whose sum is σ = 3154155264. Its totient is φ = 406527424.

The previous prime is 1220272721. The next prime is 1220272763. The reversal of 1220272752 is 2572720221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92863 + ... + 105185.

Almost surely, 2^1220272752 is an apocalyptic number.

1220272752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220272752 is an abundant number, since it is smaller than the sum of its proper divisors (1933882512).

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

1220272752 is a wasteful number, since it uses less digits than its factorization.

1220272752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14397 (or 14391 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 1220272752 is about 34932.4026084665. The cubic root of 1220272752 is about 1068.6093536201.

Adding to 1220272752 its reverse (2572720221), we get a palindrome (3792992973).

The spelling of 1220272752 in words is "one billion, two hundred twenty million, two hundred seventy-two thousand, seven hundred fifty-two".