253072438 has 16 divisors (see below), whose sum is σ = 423094320. Its totient is φ = 112824576.

The previous prime is 253072409. The next prime is 253072439. The reversal of 253072438 is 834270352.

253072438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253072439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195231 + ... + 196522.

It is an arithmetic number, because the mean of its divisors is an integer number (26443395).

Almost surely, 2^253072438 is an apocalyptic number.

253072438 is a deficient number, since it is larger than the sum of its proper divisors (170021882).

253072438 is a wasteful number, since it uses less digits than its factorization.

253072438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391791.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 253072438 is about 15908.2506266403. The cubic root of 253072438 is about 632.5307107524.

The spelling of 253072438 in words is "two hundred fifty-three million, seventy-two thousand, four hundred thirty-eight".