20406045441 has 8 divisors (see below), whose sum is σ = 28391019840. Its totient is φ = 13012550672.

The previous prime is 20406045433. The next prime is 20406045493. The reversal of 20406045441 is 14454060402.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20406045441 - 2³ = 20406045433 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20406045399 and 20406045408.

It is not an unprimeable number, because it can be changed into a prime (20406045841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147869826 + ... + 147869963.

It is an arithmetic number, because the mean of its divisors is an integer number (3548877480).

Almost surely, 2^20406045441 is an apocalyptic number.

It is an amenable number.

20406045441 is a deficient number, since it is larger than the sum of its proper divisors (7984974399).

20406045441 is a wasteful number, since it uses less digits than its factorization.

20406045441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295739815.

The product of its (nonzero) digits is 15360, while the sum is 30.

The spelling of 20406045441 in words is "twenty billion, four hundred six million, forty-five thousand, four hundred forty-one".