747420020 has 12 divisors (see below), whose sum is σ = 1569582084. Its totient is φ = 298968000.

The previous prime is 747419999. The next prime is 747420073. The reversal of 747420020 is 20024747.

747420020 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 2 ways, for example, as 138909796 + 608510224 = 11786^2 + 24668^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18685481 + ... + 18685520.

It is an arithmetic number, because the mean of its divisors is an integer number (130798507).

Almost surely, 2^747420020 is an apocalyptic number.

It is an amenable number.

747420020 is an abundant number, since it is smaller than the sum of its proper divisors (822162064).

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

747420020 is a wasteful number, since it uses less digits than its factorization.

747420020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37371010 (or 37371008 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 26.

The square root of 747420020 is about 27338.9835217039. The cubic root of 747420020 is about 907.5172918004.

Adding to 747420020 its reverse (20024747), we get a palindrome (767444767).

The spelling of 747420020 in words is "seven hundred forty-seven million, four hundred twenty thousand, twenty".