245278452 has 12 divisors (see below), whose sum is σ = 572316416. Its totient is φ = 81759480.

The previous prime is 245278387. The next prime is 245278457. The reversal of 245278452 is 254872542.

245278452 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 245278452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245278457) 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 3 ways as a sum of consecutive naturals, for example, 10219924 + ... + 10219947.

Almost surely, 2^245278452 is an apocalyptic number.

It is an amenable number.

245278452 is an abundant number, since it is smaller than the sum of its proper divisors (327037964).

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

245278452 is a wasteful number, since it uses less digits than its factorization.

245278452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20439878 (or 20439876 counting only the distinct ones).

The product of its digits is 179200, while the sum is 39.

The square root of 245278452 is about 15661.3681394698. The cubic root of 245278452 is about 625.9694412231.

The spelling of 245278452 in words is "two hundred forty-five million, two hundred seventy-eight thousand, four hundred fifty-two".