43725319236 has 45 divisors (see below), whose sum is σ = 114316462029. Its totient is φ = 14573851776.

The previous prime is 43725319223. The next prime is 43725319247. The reversal of 43725319236 is 63291352734.

The square root of 43725319236 is 209106.

It is a perfect power (a square), and thus also a powerful number.

43725319236 is a `hidden beast` number, since 43 + 72 + 531 + 9 + 2 + 3 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15047928900 + 28677390336 = 122670^2 + 169344^2 .

It is a super-2 number, since 2×43725319236² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43725319191 and 43725319200.

It is an unprimeable number.

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 14 ways as a sum of consecutive naturals, for example, 3758100 + ... + 3769716.

Almost surely, 2^43725319236 is an apocalyptic number.

43725319236 is the 209106-th square number.

It is an amenable number.

43725319236 is an abundant number, since it is smaller than the sum of its proper divisors (70591142793).

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

43725319236 is an frugal number, since it uses more digits than its factorization.

43725319236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23250 (or 11622 counting only the distinct ones).

The product of its digits is 816480, while the sum is 45.

The spelling of 43725319236 in words is "forty-three billion, seven hundred twenty-five million, three hundred nineteen thousand, two hundred thirty-six".