761138020 has 24 divisors (see below), whose sum is σ = 1614219768. Its totient is φ = 301440000.

The previous prime is 761138003. The next prime is 761138029. The reversal of 761138020 is 20831167.

761138020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 296390656 + 464747364 = 17216^2 + 21558^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 761138020.

It is not an unprimeable number, because it can be changed into a prime (761138029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186381 + ... + 190420.

It is an arithmetic number, because the mean of its divisors is an integer number (67259157).

Almost surely, 2^761138020 is an apocalyptic number.

It is an amenable number.

761138020 is an abundant number, since it is smaller than the sum of its proper divisors (853081748).

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

761138020 is a wasteful number, since it uses less digits than its factorization.

761138020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376911 (or 376909 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 761138020 is about 27588.7299453962. The cubic root of 761138020 is about 913.0357976724.

Adding to 761138020 its reverse (20831167), we get a palindrome (781969187).

The spelling of 761138020 in words is "seven hundred sixty-one million, one hundred thirty-eight thousand, twenty".