43020481 has 9 divisors (see below), whose sum is σ = 50097699. Its totient is φ = 36835344.

The previous prime is 43020473. The next prime is 43020517. The reversal of 43020481 is 18402034.

The square root of 43020481 is 6559.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2265025 + 40755456 = 1505^2 + 6384^2 .

It is not a de Polignac number, because 43020481 - 2³ = 43020473 is a prime.

It is a super-2 number, since 2×43020481² = 3701523570942722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43020431) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 45445 + ... + 46381.

It is an arithmetic number, because the mean of its divisors is an integer number (5566411).

Almost surely, 2^43020481 is an apocalyptic number.

43020481 is the 6559-th square number.

43020481 is the 3280-th centered octagonal number.

It is an amenable number.

43020481 is a deficient number, since it is larger than the sum of its proper divisors (7077218).

43020481 is an frugal number, since it uses more digits than its factorization.

43020481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888 (or 944 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The cubic root of 43020481 is about 350.3954197647.

The spelling of 43020481 in words is "forty-three million, twenty thousand, four hundred eighty-one".