245273756 has 72 divisors (see below), whose sum is σ = 562615200. Its totient is φ = 91293696.

The previous prime is 245273729. The next prime is 245273759. The reversal of 245273756 is 657372542.

245273756 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245273759) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78920 + ... + 81968.

It is an arithmetic number, because the mean of its divisors is an integer number (7814100).

Almost surely, 2^245273756 is an apocalyptic number.

245273756 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245273756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281307600).

245273756 is an abundant number, since it is smaller than the sum of its proper divisors (317341444).

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

245273756 is a wasteful number, since it uses less digits than its factorization.

245273756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3103 (or 3088 counting only the distinct ones).

The product of its digits is 352800, while the sum is 41.

The square root of 245273756 is about 15661.2182157072. The cubic root of 245273756 is about 625.9654463468.

The spelling of 245273756 in words is "two hundred forty-five million, two hundred seventy-three thousand, seven hundred fifty-six".