43490368 has 14 divisors (see below), whose sum is σ = 86301326. Its totient is φ = 21745152.

The previous prime is 43490353. The next prime is 43490371. The reversal of 43490368 is 86309434.

It can be written as a sum of positive squares in only one way, i.e., 23348224 + 20142144 = 4832^2 + 4488^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339705 + ... + 339832.

Almost surely, 2^43490368 is an apocalyptic number.

It is an amenable number.

43490368 is a deficient number, since it is larger than the sum of its proper divisors (42810958).

43490368 is an equidigital number, since it uses as much as digits as its factorization.

43490368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679549 (or 679539 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 43490368 is about 6594.7227386752. The cubic root of 43490368 is about 351.6665230140. Note that the first 3 decimals are identical.

The spelling of 43490368 in words is "forty-three million, four hundred ninety thousand, three hundred sixty-eight".