40040020454 has 8 divisors (see below), whose sum is σ = 68640035088. Its totient is φ = 17160008760.

The previous prime is 40040020421. The next prime is 40040020459. The reversal of 40040020454 is 45402004004.

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

It is a super-2 number, since 2×40040020454² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40040020459) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1430000717 + ... + 1430000744.

It is an arithmetic number, because the mean of its divisors is an integer number (8580004386).

Almost surely, 2^40040020454 is an apocalyptic number.

40040020454 is a deficient number, since it is larger than the sum of its proper divisors (28600014634).

40040020454 is a wasteful number, since it uses less digits than its factorization.

40040020454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2860001470.

The product of its (nonzero) digits is 2560, while the sum is 23.

Adding to 40040020454 its reverse (45402004004), we get a palindrome (85442024458).

The spelling of 40040020454 in words is "forty billion, forty million, twenty thousand, four hundred fifty-four".