253033400 has 24 divisors (see below), whose sum is σ = 588303120. Its totient is φ = 101213280.

The previous prime is 253033397. The next prime is 253033453. The reversal of 253033400 is 4330352.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 632384 + ... + 632783.

It is an arithmetic number, because the mean of its divisors is an integer number (24512630).

Almost surely, 2^253033400 is an apocalyptic number.

253033400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253033400 is an abundant number, since it is smaller than the sum of its proper divisors (335269720).

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

253033400 is a wasteful number, since it uses less digits than its factorization.

253033400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265183 (or 1265174 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 253033400 is about 15907.0236059421. The cubic root of 253033400 is about 632.4981851458.

Adding to 253033400 its reverse (4330352), we get a palindrome (257363752).

The spelling of 253033400 in words is "two hundred fifty-three million, thirty-three thousand, four hundred".