40154023454 has 8 divisors (see below), whose sum is σ = 60310184688. Its totient is φ = 20050628560.

The previous prime is 40154023447. The next prime is 40154023501. The reversal of 40154023454 is 45432045104.

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

It is a super-2 number, since 2×40154023454² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40154023454.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13189682 + ... + 13192725.

It is an arithmetic number, because the mean of its divisors is an integer number (7538773086).

Almost surely, 2^40154023454 is an apocalyptic number.

40154023454 is a deficient number, since it is larger than the sum of its proper divisors (20156161234).

40154023454 is a wasteful number, since it uses less digits than its factorization.

40154023454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26383170.

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 40154023454 its reverse (45432045104), we get a palindrome (85586068558).

The spelling of 40154023454 in words is "forty billion, one hundred fifty-four million, twenty-three thousand, four hundred fifty-four".