772241646 has 32 divisors (see below), whose sum is σ = 1686060288. Its totient is φ = 233850240.

The previous prime is 772241623. The next prime is 772241647. The reversal of 772241646 is 646142277.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772241647) 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 15 ways as a sum of consecutive naturals, for example, 120495 + ... + 126741.

It is an arithmetic number, because the mean of its divisors is an integer number (52689384).

Almost surely, 2^772241646 is an apocalyptic number.

772241646 is an abundant number, since it is smaller than the sum of its proper divisors (913818642).

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

772241646 is a wasteful number, since it uses less digits than its factorization.

772241646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8136.

The product of its digits is 112896, while the sum is 39.

The square root of 772241646 is about 27789.2361535901. The cubic root of 772241646 is about 917.4542277329.

The spelling of 772241646 in words is "seven hundred seventy-two million, two hundred forty-one thousand, six hundred forty-six".