1250420000 has 120 divisors (see below), whose sum is σ = 3111204096. Its totient is φ = 494496000.

The previous prime is 1250419991. The next prime is 1250420011. The reversal of 1250420000 is 240521.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2059697 + ... + 2060303.

Almost surely, 2^1250420000 is an apocalyptic number.

1250420000 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 1250420000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1555602048).

1250420000 is an abundant number, since it is smaller than the sum of its proper divisors (1860784096).

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

1250420000 is an equidigital number, since it uses as much as digits as its factorization.

1250420000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740 (or 717 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 1250420000 is about 35361.2782574386. The cubic root of 1250420000 is about 1077.3379798485.

Adding to 1250420000 its reverse (240521), we get a palindrome (1250660521).

The spelling of 1250420000 in words is "one billion, two hundred fifty million, four hundred twenty thousand".