1214225460 has 144 divisors (see below), whose sum is σ = 4218230016. Its totient is φ = 276950016.

The previous prime is 1214225431. The next prime is 1214225461. The reversal of 1214225460 is 645224121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214225461) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 935532 + ... + 936828.

It is an arithmetic number, because the mean of its divisors is an integer number (29293264).

Almost surely, 2^1214225460 is an apocalyptic number.

1214225460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1214225460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2109115008).

1214225460 is an abundant number, since it is smaller than the sum of its proper divisors (3004004556).

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

1214225460 is a wasteful number, since it uses less digits than its factorization.

1214225460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2062 (or 2057 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 1214225460 is about 34845.7380464240. The cubic root of 1214225460 is about 1066.8411977866.

Adding to 1214225460 its reverse (645224121), we get a palindrome (1859449581).

The spelling of 1214225460 in words is "one billion, two hundred fourteen million, two hundred twenty-five thousand, four hundred sixty".