40040100454 has 4 divisors (see below), whose sum is σ = 60060150684. Its totient is φ = 20020050226.

The previous prime is 40040100427. The next prime is 40040100479. The reversal of 40040100454 is 45400104004.

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

It is a super-2 number, since 2×40040100454² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010025112 + ... + 10010025115.

It is an arithmetic number, because the mean of its divisors is an integer number (15015037671).

Almost surely, 2^40040100454 is an apocalyptic number.

40040100454 is a deficient number, since it is larger than the sum of its proper divisors (20020050230).

40040100454 is a wasteful number, since it uses less digits than its factorization.

40040100454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20020050229.

The product of its (nonzero) digits is 1280, while the sum is 22.

Adding to 40040100454 its reverse (45400104004), we get a palindrome (85440204458).

The spelling of 40040100454 in words is "forty billion, forty million, one hundred thousand, four hundred fifty-four".