43020126 has 48 divisors (see below), whose sum is σ = 98902800. Its totient is φ = 13860720.

The previous prime is 43020077. The next prime is 43020127. The reversal of 43020126 is 62102034.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 43020099 and 43020108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43020127) 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, 51480 + ... + 52308.

It is an arithmetic number, because the mean of its divisors is an integer number (2060475).

Almost surely, 2^43020126 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43020126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49451400).

43020126 is an abundant number, since it is smaller than the sum of its proper divisors (55882674).

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

43020126 is a wasteful number, since it uses less digits than its factorization.

43020126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902 (or 865 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 43020126 is about 6558.9729378920. The cubic root of 43020126 is about 350.3944559547.

The spelling of 43020126 in words is "forty-three million, twenty thousand, one hundred twenty-six".