43740625 has 12 divisors (see below), whose sum is σ = 54676188. Its totient is φ = 34990000.

The previous prime is 43740617. The next prime is 43740689. The reversal of 43740625 is 52604734.

It can be written as a sum of positive squares in 6 ways, for example, as 36336784 + 7403841 = 6028^2 + 2721^2 .

It is not a de Polignac number, because 43740625 - 2³ = 43740617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3874 + ... + 10123.

It is an arithmetic number, because the mean of its divisors is an integer number (4556349).

Almost surely, 2^43740625 is an apocalyptic number.

It is an amenable number.

43740625 is a deficient number, since it is larger than the sum of its proper divisors (10935563).

43740625 is an frugal number, since it uses more digits than its factorization.

43740625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14022 (or 14002 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 43740625 is about 6613.6695563053. The cubic root of 43740625 is about 352.3397658812.

The spelling of 43740625 in words is "forty-three million, seven hundred forty thousand, six hundred twenty-five".