245693238 has 64 divisors (see below), whose sum is σ = 584962560. Its totient is φ = 67334400.

The previous prime is 245693233. The next prime is 245693243. The reversal of 245693238 is 832396542.

It is an interprime number because it is at equal distance from previous prime (245693233) and next prime (245693243).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 245693238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245693233) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 103873 + ... + 106211.

It is an arithmetic number, because the mean of its divisors is an integer number (9140040).

Almost surely, 2^245693238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245693238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292481280).

245693238 is an abundant number, since it is smaller than the sum of its proper divisors (339269322).

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

245693238 is a wasteful number, since it uses less digits than its factorization.

245693238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2453.

The product of its digits is 311040, while the sum is 42.

The square root of 245693238 is about 15674.6048754028. The cubic root of 245693238 is about 626.3220977467.

The spelling of 245693238 in words is "two hundred forty-five million, six hundred ninety-three thousand, two hundred thirty-eight".