712542020 has 24 divisors (see below), whose sum is σ = 1504994904. Its totient is φ = 283367936.

The previous prime is 712542011. The next prime is 712542031. The reversal of 712542020 is 20245217.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 68194564 + 644347456 = 8258^2 + 25384^2 .

It is a super-2 number, since 2×712542020² = 1015432260531360800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99509 + ... + 106428.

It is an arithmetic number, because the mean of its divisors is an integer number (62708121).

Almost surely, 2^712542020 is an apocalyptic number.

It is an amenable number.

712542020 is an abundant number, since it is smaller than the sum of its proper divisors (792452884).

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

712542020 is a wasteful number, since it uses less digits than its factorization.

712542020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206119 (or 206117 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 712542020 is about 26693.4827251897. The cubic root of 712542020 is about 893.1755516370.

Adding to 712542020 its reverse (20245217), we get a palindrome (732787237).

The spelling of 712542020 in words is "seven hundred twelve million, five hundred forty-two thousand, twenty".