772642320 has 40 divisors (see below), whose sum is σ = 2395191936. Its totient is φ = 206037888.

The previous prime is 772642319. The next prime is 772642349. The reversal of 772642320 is 23246277.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1609432 + ... + 1609911.

Almost surely, 2^772642320 is an apocalyptic number.

It is an amenable number.

772642320 is an abundant number, since it is smaller than the sum of its proper divisors (1622549616).

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

772642320 is a wasteful number, since it uses less digits than its factorization.

772642320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3219359 (or 3219353 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 33.

The square root of 772642320 is about 27796.4443769343. Note that the first 3 decimals coincide. The cubic root of 772642320 is about 917.6128725904.

Adding to 772642320 its reverse (23246277), we get a palindrome (795888597).

The spelling of 772642320 in words is "seven hundred seventy-two million, six hundred forty-two thousand, three hundred twenty".