43602401 has 4 divisors (see below), whose sum is σ = 43854612. Its totient is φ = 43350192.

The previous prime is 43602371. The next prime is 43602409. The reversal of 43602401 is 10420634.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19149376 + 24453025 = 4376^2 + 4945^2 .

It is a cyclic number.

It is not a de Polignac number, because 43602401 - 2¹⁰ = 43601377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43602409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125846 + ... + 126191.

It is an arithmetic number, because the mean of its divisors is an integer number (10963653).

Almost surely, 2^43602401 is an apocalyptic number.

It is an amenable number.

43602401 is a deficient number, since it is larger than the sum of its proper divisors (252211).

43602401 is a wasteful number, since it uses less digits than its factorization.

43602401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252210.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 43602401 is about 6603.2114156674. The cubic root of 43602401 is about 351.9682332946.

The spelling of 43602401 in words is "forty-three million, six hundred two thousand, four hundred one".