43049620 has 12 divisors (see below), whose sum is σ = 90404244. Its totient is φ = 17219840.

The previous prime is 43049609. The next prime is 43049639. The reversal of 43049620 is 2694034.

It can be written as a sum of positive squares in 2 ways, for example, as 20903184 + 22146436 = 4572^2 + 4706^2 .

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, 1076221 + ... + 1076260.

It is an arithmetic number, because the mean of its divisors is an integer number (7533687).

Almost surely, 2^43049620 is an apocalyptic number.

It is an amenable number.

43049620 is an abundant number, since it is smaller than the sum of its proper divisors (47354624).

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

43049620 is a wasteful number, since it uses less digits than its factorization.

43049620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2152490 (or 2152488 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 43049620 is about 6561.2209229685. The cubic root of 43049620 is about 350.4745128506.

It can be divided in two parts, 4304 and 9620, that added together give a square (13924 = 118²).

The spelling of 43049620 in words is "forty-three million, forty-nine thousand, six hundred twenty".