245772726 has 16 divisors (see below), whose sum is σ = 493129728. Its totient is φ = 81660200.

The previous prime is 245772707. The next prime is 245772727. The reversal of 245772726 is 627277542.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245772727) 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, 63990 + ... + 67721.

It is an arithmetic number, because the mean of its divisors is an integer number (30820608).

Almost surely, 2^245772726 is an apocalyptic number.

245772726 is an abundant number, since it is smaller than the sum of its proper divisors (247357002).

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

245772726 is a wasteful number, since it uses less digits than its factorization.

245772726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132027.

The product of its digits is 329280, while the sum is 42.

The square root of 245772726 is about 15677.1402366631. The cubic root of 245772726 is about 626.3896341638.

The spelling of 245772726 in words is "two hundred forty-five million, seven hundred seventy-two thousand, seven hundred twenty-six".