253403400 has 48 divisors (see below), whose sum is σ = 785552400. Its totient is φ = 67574080.

The previous prime is 253403383. The next prime is 253403413. The reversal of 253403400 is 4304352.

It is a happy number.

253403400 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 210570 + ... + 211769.

It is an arithmetic number, because the mean of its divisors is an integer number (16365675).

Almost surely, 2^253403400 is an apocalyptic number.

253403400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253403400 is an abundant number, since it is smaller than the sum of its proper divisors (532149000).

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

253403400 is a wasteful number, since it uses less digits than its factorization.

253403400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422358 (or 422349 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 253403400 is about 15918.6494402006. The cubic root of 253403400 is about 632.8063267497.

Adding to 253403400 its reverse (4304352), we get a palindrome (257707752).

The spelling of 253403400 in words is "two hundred fifty-three million, four hundred three thousand, four hundred".