43713828 has 18 divisors (see below), whose sum is σ = 110498934. Its totient is φ = 14571264.

The previous prime is 43713821. The next prime is 43713871. The reversal of 43713828 is 82831734.

It can be written as a sum of positive squares in only one way, i.e., 28643904 + 15069924 = 5352^2 + 3882^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1214273 = 43713828 / (4 + 3 + 7 + 1 + 3 + 8 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 43713792 and 43713801.

It is not an unprimeable number, because it can be changed into a prime (43713821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 607101 + ... + 607172.

Almost surely, 2^43713828 is an apocalyptic number.

It is an amenable number.

43713828 is an abundant number, since it is smaller than the sum of its proper divisors (66785106).

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

43713828 is a wasteful number, since it uses less digits than its factorization.

43713828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214283 (or 1214278 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 43713828 is about 6611.6433660626. The cubic root of 43713828 is about 352.2677993935.

The spelling of 43713828 in words is "forty-three million, seven hundred thirteen thousand, eight hundred twenty-eight".