1227252460 has 24 divisors (see below), whose sum is σ = 2945406240. Its totient is φ = 420772224.

The previous prime is 1227252419. The next prime is 1227252487. The reversal of 1227252460 is 642527221.

It is a super-2 number, since 2×1227252460² = 3012297201152103200, which contains 22 as substring.

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, 4382905 + ... + 4383184.

It is an arithmetic number, because the mean of its divisors is an integer number (122725260).

Almost surely, 2^1227252460 is an apocalyptic number.

1227252460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1227252460 is an abundant number, since it is smaller than the sum of its proper divisors (1718153780).

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

1227252460 is a wasteful number, since it uses less digits than its factorization.

1227252460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8766105 (or 8766103 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 1227252460 is about 35032.1632218166. The cubic root of 1227252460 is about 1070.6428896319.

Adding to 1227252460 its reverse (642527221), we get a palindrome (1869779681).

The spelling of 1227252460 in words is "one billion, two hundred twenty-seven million, two hundred fifty-two thousand, four hundred sixty".