1250449000 has 32 divisors (see below), whose sum is σ = 2926053000. Its totient is φ = 500179200.

The previous prime is 1250448931. The next prime is 1250449001. The reversal of 1250449000 is 9440521.

It can be written as a sum of positive squares in 4 ways, for example, as 97574884 + 1152874116 = 9878^2 + 33954^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (1250449001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 624225 + ... + 626224.

Almost surely, 2^1250449000 is an apocalyptic number.

1250449000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1250449000 is an abundant number, since it is smaller than the sum of its proper divisors (1675604000).

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

1250449000 is a wasteful number, since it uses less digits than its factorization.

1250449000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250470 (or 1250456 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1250449000 is about 35361.6883081111. The cubic root of 1250449000 is about 1077.3463083994.

Adding to 1250449000 its reverse (9440521), we get a palindrome (1259889521).

It can be divided in two parts, 12504 and 49000, that added together give a square (61504 = 248²).

The spelling of 1250449000 in words is "one billion, two hundred fifty million, four hundred forty-nine thousand".