43049418 has 16 divisors (see below), whose sum is σ = 86429376. Its totient is φ = 14294720.

The previous prime is 43049387. The next prime is 43049429. The reversal of 43049418 is 81494034.

It is a happy number.

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 in 7 ways as a sum of consecutive naturals, for example, 12063 + ... + 15218.

It is an arithmetic number, because the mean of its divisors is an integer number (5401836).

Almost surely, 2^43049418 is an apocalyptic number.

43049418 is an abundant number, since it is smaller than the sum of its proper divisors (43379958).

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

43049418 is a wasteful number, since it uses less digits than its factorization.

43049418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27549.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 43049418 is about 6561.2055294740. The cubic root of 43049418 is about 350.4739646772.

The spelling of 43049418 in words is "forty-three million, forty-nine thousand, four hundred eighteen".