772340556 has 96 divisors (see below), whose sum is σ = 1990130688. Its totient is φ = 231678720.

The previous prime is 772340533. The next prime is 772340593. The reversal of 772340556 is 655043277.

772340556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1140490 + ... + 1141166.

It is an arithmetic number, because the mean of its divisors is an integer number (20730528).

Almost surely, 2^772340556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 772340556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (995065344).

772340556 is an abundant number, since it is smaller than the sum of its proper divisors (1217790132).

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

772340556 is a wasteful number, since it uses less digits than its factorization.

772340556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871 (or 869 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 39.

The square root of 772340556 is about 27791.0157425021. The cubic root of 772340556 is about 917.4933957507.

The spelling of 772340556 in words is "seven hundred seventy-two million, three hundred forty thousand, five hundred fifty-six".