1225302624 has 216 divisors, whose sum is σ = 4365794160. Its totient is φ = 323108352.

The previous prime is 1225302623. The next prime is 1225302629. The reversal of 1225302624 is 4262035221.

It is a happy number.

1225302624 is a `hidden beast` number, since 1 + 2 + 2 + 5 + 30 + 2 + 624 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225302623) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 180117 + ... + 186795.

It is an arithmetic number, because the mean of its divisors is an integer number (20212010).

Almost surely, 2^1225302624 is an apocalyptic number.

1225302624 is a gapful number since it is divisible by the number (14) 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 1225302624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2182897080).

1225302624 is an abundant number, since it is smaller than the sum of its proper divisors (3140491536).

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

1225302624 is a wasteful number, since it uses less digits than its factorization.

1225302624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6722 (or 6704 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 1225302624 is about 35004.3229330321. The cubic root of 1225302624 is about 1070.0755832129.

Adding to 1225302624 its reverse (4262035221), we get a palindrome (5487337845).

The spelling of 1225302624 in words is "one billion, two hundred twenty-five million, three hundred two thousand, six hundred twenty-four".