772128414 has 12 divisors (see below), whose sum is σ = 1672944936. Its totient is φ = 257376132.

The previous prime is 772128407. The next prime is 772128419. The reversal of 772128414 is 414821277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772128419) 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 5 ways as a sum of consecutive naturals, for example, 21447994 + ... + 21448029.

It is an arithmetic number, because the mean of its divisors is an integer number (139412078).

Almost surely, 2^772128414 is an apocalyptic number.

772128414 is an abundant number, since it is smaller than the sum of its proper divisors (900816522).

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

772128414 is a wasteful number, since it uses less digits than its factorization.

772128414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42896031 (or 42896028 counting only the distinct ones).

The product of its digits is 25088, while the sum is 36.

The square root of 772128414 is about 27787.1987433062. The cubic root of 772128414 is about 917.4093841464.

The spelling of 772128414 in words is "seven hundred seventy-two million, one hundred twenty-eight thousand, four hundred fourteen".