1250620240 has 20 divisors (see below), whose sum is σ = 2907692244. Its totient is φ = 500248064.

The previous prime is 1250620219. The next prime is 1250620289. The reversal of 1250620240 is 420260521.

It can be written as a sum of positive squares in 2 ways, for example, as 447237904 + 803382336 = 21148^2 + 28344^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7816297 + ... + 7816456.

Almost surely, 2^1250620240 is an apocalyptic number.

1250620240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1250620240 is an abundant number, since it is smaller than the sum of its proper divisors (1657072004).

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

1250620240 is a wasteful number, since it uses less digits than its factorization.

1250620240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15632766 (or 15632760 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1250620240 is about 35364.1094897072. The cubic root of 1250620240 is about 1077.3954844317.

Adding to 1250620240 its reverse (420260521), we get a palindrome (1670880761).

The spelling of 1250620240 in words is "one billion, two hundred fifty million, six hundred twenty thousand, two hundred forty".