43000401 has 16 divisors (see below), whose sum is σ = 61985600. Its totient is φ = 26422848.

The previous prime is 43000393. The next prime is 43000453. The reversal of 43000401 is 10400034.

It is not a de Polignac number, because 43000401 - 2³ = 43000393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43000201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8086 + ... + 12303.

It is an arithmetic number, because the mean of its divisors is an integer number (3874100).

Almost surely, 2^43000401 is an apocalyptic number.

It is an amenable number.

43000401 is a deficient number, since it is larger than the sum of its proper divisors (18985199).

43000401 is a wasteful number, since it uses less digits than its factorization.

43000401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20448.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 43000401 is about 6557.4691001941. The cubic root of 43000401 is about 350.3408950761.

Adding to 43000401 its reverse (10400034), we get a palindrome (53400435).

The spelling of 43000401 in words is "forty-three million, four hundred one", and thus it is an aban number.