43486428 has 72 divisors (see below), whose sum is σ = 109258240. Its totient is φ = 13446720.

The previous prime is 43486427. The next prime is 43486441. The reversal of 43486428 is 82468434.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43486427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 312783 + ... + 312921.

Almost surely, 2^43486428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43486428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54629120).

43486428 is an abundant number, since it is smaller than the sum of its proper divisors (65771812).

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

43486428 is a wasteful number, since it uses less digits than its factorization.

43486428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 204 counting only the distinct ones).

The product of its digits is 147456, while the sum is 39.

The square root of 43486428 is about 6594.4240082057. The cubic root of 43486428 is about 351.6559029771.

The spelling of 43486428 in words is "forty-three million, four hundred eighty-six thousand, four hundred twenty-eight".