1225241730 has 96 divisors (see below), whose sum is σ = 3287164608. Its totient is φ = 316483200.

The previous prime is 1225241723. The next prime is 1225241741. The reversal of 1225241730 is 371425221.

1225241730 is a `hidden beast` number, since 122 + 524 + 17 + 3 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1225241694 and 1225241703.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 366165 + ... + 369495.

It is an arithmetic number, because the mean of its divisors is an integer number (34241298).

Almost surely, 2^1225241730 is an apocalyptic number.

1225241730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1225241730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1643582304).

1225241730 is an abundant number, since it is smaller than the sum of its proper divisors (2061922878).

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

1225241730 is a wasteful number, since it uses less digits than its factorization.

1225241730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3472 (or 3469 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 1225241730 is about 35003.4531153713. The cubic root of 1225241730 is about 1070.0578563644.

Adding to 1225241730 its reverse (371425221), we get a palindrome (1596666951).

The spelling of 1225241730 in words is "one billion, two hundred twenty-five million, two hundred forty-one thousand, seven hundred thirty".