1227248992 has 24 divisors (see below), whose sum is σ = 2416932000. Its totient is φ = 613425024.

The previous prime is 1227248977. The next prime is 1227248993. The reversal of 1227248992 is 2998427221.

It is a super-2 number, since 2×1227248992² = 3012280176730032128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227248993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173134 + ... + 180082.

It is an arithmetic number, because the mean of its divisors is an integer number (100705500).

Almost surely, 2^1227248992 is an apocalyptic number.

It is an amenable number.

1227248992 is a deficient number, since it is larger than the sum of its proper divisors (1189683008).

1227248992 is an equidigital number, since it uses as much as digits as its factorization.

1227248992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12478 (or 12470 counting only the distinct ones).

The product of its digits is 290304, while the sum is 46.

The square root of 1227248992 is about 35032.1137244101. The cubic root of 1227248992 is about 1070.6418811480.

The spelling of 1227248992 in words is "one billion, two hundred twenty-seven million, two hundred forty-eight thousand, nine hundred ninety-two".