772055394 has 64 divisors (see below), whose sum is σ = 1736484480. Its totient is φ = 226782720.

The previous prime is 772055377. The next prime is 772055407. The reversal of 772055394 is 493550277.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 998392 + ... + 999164.

It is an arithmetic number, because the mean of its divisors is an integer number (27132570).

Almost surely, 2^772055394 is an apocalyptic number.

772055394 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 772055394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (868242240).

772055394 is an abundant number, since it is smaller than the sum of its proper divisors (964429086).

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

772055394 is a wasteful number, since it uses less digits than its factorization.

772055394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235.

The product of its (nonzero) digits is 264600, while the sum is 42.

The square root of 772055394 is about 27785.8847978609. The cubic root of 772055394 is about 917.3804635058.

The spelling of 772055394 in words is "seven hundred seventy-two million, fifty-five thousand, three hundred ninety-four".