1250420346 has 144 divisors (see below), whose sum is σ = 3434431104. Its totient is φ = 321412608.

The previous prime is 1250420321. The next prime is 1250420359. The reversal of 1250420346 is 6430240521.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 836776 + ... + 838268.

It is an arithmetic number, because the mean of its divisors is an integer number (23850216).

Almost surely, 2^1250420346 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1250420346, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1717215552).

1250420346 is an abundant number, since it is smaller than the sum of its proper divisors (2184010758).

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

1250420346 is a wasteful number, since it uses less digits than its factorization.

1250420346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565 (or 1545 counting only the distinct ones).

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

The square root of 1250420346 is about 35361.2831497953. The cubic root of 1250420346 is about 1077.3380792175.

Adding to 1250420346 its reverse (6430240521), we get a palindrome (7680660867).

The spelling of 1250420346 in words is "one billion, two hundred fifty million, four hundred twenty thousand, three hundred forty-six".