40044500455 has 4 divisors (see below), whose sum is σ = 48053400552. Its totient is φ = 32035600360.

The previous prime is 40044500443. The next prime is 40044500459. The reversal of 40044500455 is 55400544004.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-40044500455 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40044500459) 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, 4004450041 + ... + 4004450050.

It is an arithmetic number, because the mean of its divisors is an integer number (12013350138).

Almost surely, 2^40044500455 is an apocalyptic number.

40044500455 is a deficient number, since it is larger than the sum of its proper divisors (8008900097).

40044500455 is an equidigital number, since it uses as much as digits as its factorization.

40044500455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8008900096.

The product of its (nonzero) digits is 32000, while the sum is 31.

The spelling of 40044500455 in words is "forty billion, forty-four million, five hundred thousand, four hundred fifty-five".