43539674 has 4 divisors (see below), whose sum is σ = 65309514. Its totient is φ = 21769836.

The previous prime is 43539653. The next prime is 43539677. The reversal of 43539674 is 47693534.

43539674 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 42159049 + 1380625 = 6493^2 + 1175^2 .

It is not an unprimeable number, because it can be changed into a prime (43539677) 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 as a sum of consecutive naturals, namely, 10884917 + ... + 10884920.

Almost surely, 2^43539674 is an apocalyptic number.

43539674 is a deficient number, since it is larger than the sum of its proper divisors (21769840).

43539674 is a wasteful number, since it uses less digits than its factorization.

43539674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21769839.

The product of its digits is 272160, while the sum is 41.

The square root of 43539674 is about 6598.4599718419. The cubic root of 43539674 is about 351.7993702157.

Adding to 43539674 its product of digits (272160), we get a palindrome (43811834).

The spelling of 43539674 in words is "forty-three million, five hundred thirty-nine thousand, six hundred seventy-four".