401000043437 has 4 divisors (see below), whose sum is σ = 458285763936. Its totient is φ = 343714322940.

The previous prime is 401000043419. The next prime is 401000043449. The reversal of 401000043437 is 734340000104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 401000043437 - 2¹⁶ = 400999977901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401000043337) 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, 28642860239 + ... + 28642860252.

It is an arithmetic number, because the mean of its divisors is an integer number (114571440984).

Almost surely, 2^401000043437 is an apocalyptic number.

It is an amenable number.

401000043437 is a deficient number, since it is larger than the sum of its proper divisors (57285720499).

401000043437 is an equidigital number, since it uses as much as digits as its factorization.

401000043437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57285720498.

The product of its (nonzero) digits is 4032, while the sum is 26.

The spelling of 401000043437 in words is "four hundred one billion, forty-three thousand, four hundred thirty-seven".