40505402454 has 16 divisors (see below), whose sum is σ = 88375423680. Its totient is φ = 12274364360.

The previous prime is 40505402449. The next prime is 40505402513. The reversal of 40505402454 is 45420450504.

It is a Harshad number since it is a multiple of its sum of digits (33).

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 7 ways as a sum of consecutive naturals, for example, 306859044 + ... + 306859175.

It is an arithmetic number, because the mean of its divisors is an integer number (5523463980).

Almost surely, 2^40505402454 is an apocalyptic number.

40505402454 is an abundant number, since it is smaller than the sum of its proper divisors (47870021226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40505402454 is a wasteful number, since it uses less digits than its factorization.

40505402454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613718235.

The product of its (nonzero) digits is 64000, while the sum is 33.

Adding to 40505402454 its reverse (45420450504), we get a palindrome (85925852958).

The spelling of 40505402454 in words is "forty billion, five hundred five million, four hundred two thousand, four hundred fifty-four".