253266388 has 48 divisors (see below), whose sum is σ = 467470080. Its totient is φ = 119952000.

The previous prime is 253266353. The next prime is 253266437. The reversal of 253266388 is 883662352.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1059573 + ... + 1059811.

It is an arithmetic number, because the mean of its divisors is an integer number (9738960).

Almost surely, 2^253266388 is an apocalyptic number.

It is an amenable number.

253266388 is a deficient number, since it is larger than the sum of its proper divisors (214203692).

253266388 is a wasteful number, since it uses less digits than its factorization.

253266388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448 (or 446 counting only the distinct ones).

The product of its digits is 414720, while the sum is 43.

The square root of 253266388 is about 15914.3453525428. The cubic root of 253266388 is about 632.6922560738.

The spelling of 253266388 in words is "two hundred fifty-three million, two hundred sixty-six thousand, three hundred eighty-eight".