406073521443 has 32 divisors (see below), whose sum is σ = 575707125760. Its totient is φ = 254145185280.

The previous prime is 406073521439. The next prime is 406073521453. The reversal of 406073521443 is 344125370604.

It is not a de Polignac number, because 406073521443 - 2² = 406073521439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406073521423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 984528 + ... + 1334706.

It is an arithmetic number, because the mean of its divisors is an integer number (17990847680).

Almost surely, 2^406073521443 is an apocalyptic number.

406073521443 is a deficient number, since it is larger than the sum of its proper divisors (169633604317).

406073521443 is a wasteful number, since it uses less digits than its factorization.

406073521443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350587.

The product of its (nonzero) digits is 241920, while the sum is 39.

The spelling of 406073521443 in words is "four hundred six billion, seventy-three million, five hundred twenty-one thousand, four hundred forty-three".