43490484 has 18 divisors (see below), whose sum is σ = 109934370. Its totient is φ = 14496816.

The previous prime is 43490477. The next prime is 43490507. The reversal of 43490484 is 48409434.

It can be written as a sum of positive squares in only one way, i.e., 28836900 + 14653584 = 5370^2 + 3828^2 .

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

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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: 1208069 = 43490484 / (4 + 3 + 4 + 9 + 0 + 4 + 8 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 603999 + ... + 604070.

It is an arithmetic number, because the mean of its divisors is an integer number (6107465).

Almost surely, 2^43490484 is an apocalyptic number.

It is an amenable number.

43490484 is an abundant number, since it is smaller than the sum of its proper divisors (66443886).

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

43490484 is a wasteful number, since it uses less digits than its factorization.

43490484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208079 (or 1208074 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 43490484 is about 6594.7315335804. The cubic root of 43490484 is about 351.6668356755. Note that the first 3 decimals are identical.

The spelling of 43490484 in words is "forty-three million, four hundred ninety thousand, four hundred eighty-four".