1250542400 has 42 divisors (see below), whose sum is σ = 3077119830. Its totient is φ = 500216320.

The previous prime is 1250542393. The next prime is 1250542409. The reversal of 1250542400 is 42450521.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 13191424 + 1237350976 = 3632^2 + 35176^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1250542409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 389195 + ... + 392394.

Almost surely, 2^1250542400 is an apocalyptic number.

1250542400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1250542400 is an abundant number, since it is smaller than the sum of its proper divisors (1826577430).

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

1250542400 is an equidigital number, since it uses as much as digits as its factorization.

1250542400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781611 (or 781596 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 1250542400 is about 35363.0089217533. The cubic root of 1250542400 is about 1077.3731312020.

Adding to 1250542400 its reverse (42450521), we get a palindrome (1292992921).

The spelling of 1250542400 in words is "one billion, two hundred fifty million, five hundred forty-two thousand, four hundred".