43444402 has 4 divisors (see below), whose sum is σ = 65166606. Its totient is φ = 21722200.

The previous prime is 43444397. The next prime is 43444433. The reversal of 43444402 is 20444434.

43444402 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., 36469521 + 6974881 = 6039^2 + 2641^2 .

It is an unprimeable number.

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, 10861099 + ... + 10861102.

Almost surely, 2^43444402 is an apocalyptic number.

43444402 is a deficient number, since it is larger than the sum of its proper divisors (21722204).

43444402 is a wasteful number, since it uses less digits than its factorization.

43444402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21722203.

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 43444402 is about 6591.2367579992. The cubic root of 43444402 is about 351.5425844468.

Adding to 43444402 its reverse (20444434), we get a palindrome (63888836).

The spelling of 43444402 in words is "forty-three million, four hundred forty-four thousand, four hundred two".