1227573872 has 60 divisors (see below), whose sum is σ = 2788750080. Its totient is φ = 521918208.

The previous prime is 1227573829. The next prime is 1227573881. The reversal of 1227573872 is 2783757221.

It is a super-2 number, since 2×1227573872² = 3013875222434144768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93404 + ... + 105732.

It is an arithmetic number, because the mean of its divisors is an integer number (46479168).

Almost surely, 2^1227573872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1227573872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1394375040).

1227573872 is an abundant number, since it is smaller than the sum of its proper divisors (1561176208).

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

1227573872 is a wasteful number, since it uses less digits than its factorization.

1227573872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12478 (or 12465 counting only the distinct ones).

The product of its digits is 329280, while the sum is 44.

The square root of 1227573872 is about 35036.7503059288. The cubic root of 1227573872 is about 1070.7363470220.

The spelling of 1227573872 in words is "one billion, two hundred twenty-seven million, five hundred seventy-three thousand, eight hundred seventy-two".