40454420445 has 24 divisors (see below), whose sum is σ = 70263846432. Its totient is φ = 21531736800.

The previous prime is 40454420443. The next prime is 40454420453. The reversal of 40454420445 is 54402445404.

40454420445 is a `hidden beast` number, since 404 + 5 + 4 + 4 + 204 + 45 = 666.

It is not a de Polignac number, because 40454420445 - 2¹ = 40454420443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40454420441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 893371 + ... + 937560.

It is an arithmetic number, because the mean of its divisors is an integer number (2927660268).

Almost surely, 2^40454420445 is an apocalyptic number.

40454420445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40454420445 is a deficient number, since it is larger than the sum of its proper divisors (29809425987).

40454420445 is a wasteful number, since it uses less digits than its factorization.

40454420445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831433 (or 1831430 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 36.

Adding to 40454420445 its reverse (54402445404), we get a palindrome (94856865849).

The spelling of 40454420445 in words is "forty billion, four hundred fifty-four million, four hundred twenty thousand, four hundred forty-five".