43404120401 has 16 divisors (see below), whose sum is σ = 46345219200. Its totient is φ = 40506855168.

The previous prime is 43404120371. The next prime is 43404120421. The reversal of 43404120401 is 10402140434.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 43404120401 - 2¹⁴ = 43404104017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43404120421) 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, 1971611 + ... + 1993503.

It is an arithmetic number, because the mean of its divisors is an integer number (2896576200).

Almost surely, 2^43404120401 is an apocalyptic number.

It is an amenable number.

43404120401 is a deficient number, since it is larger than the sum of its proper divisors (2941098799).

43404120401 is a wasteful number, since it uses less digits than its factorization.

43404120401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22888.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 43404120401 its reverse (10402140434), we get a palindrome (53806260835).

The spelling of 43404120401 in words is "forty-three billion, four hundred four million, one hundred twenty thousand, four hundred one".