9439402772 has 6 divisors (see below), whose sum is σ = 16518954858. Its totient is φ = 4719701384.

The previous prime is 9439402771. The next prime is 9439402793. The reversal of 9439402772 is 2772049349.

It can be written as a sum of positive squares in only one way, i.e., 7531809796 + 1907592976 = 86786^2 + 43676^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9439402771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1179925343 + ... + 1179925350.

It is an arithmetic number, because the mean of its divisors is an integer number (2753159143).

Almost surely, 2^9439402772 is an apocalyptic number.

It is an amenable number.

9439402772 is a deficient number, since it is larger than the sum of its proper divisors (7079552086).

9439402772 is a wasteful number, since it uses less digits than its factorization.

9439402772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2359850697 (or 2359850695 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 47.

The square root of 9439402772 is about 97156.5889273599. The cubic root of 9439402772 is about 2113.3990400965.

The spelling of 9439402772 in words is "nine billion, four hundred thirty-nine million, four hundred two thousand, seven hundred seventy-two".