43290481 has 8 divisors (see below), whose sum is σ = 47881064. Its totient is φ = 38880000.

The previous prime is 43290469. The next prime is 43290487. The reversal of 43290481 is 18409234.

43290481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 22896225 + 20394256 = 4785^2 + 4516^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 5-Lehmer number, since φ(43290481) divides (43290481-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 43290481 - 2¹⁵ = 43257713 is a prime.

It is a super-2 number, since 2×43290481² = 3748131490422722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43290487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44520 + ... + 45481.

It is an arithmetic number, because the mean of its divisors is an integer number (5985133).

Almost surely, 2^43290481 is an apocalyptic number.

It is an amenable number.

43290481 is a deficient number, since it is larger than the sum of its proper divisors (4590583).

43290481 is a wasteful number, since it uses less digits than its factorization.

43290481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90051.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 43290481 is about 6579.5502125905. The cubic root of 43290481 is about 351.1269281725.

The spelling of 43290481 in words is "forty-three million, two hundred ninety thousand, four hundred eighty-one".