40440478441 has 16 divisors (see below), whose sum is σ = 46723884480. Its totient is φ = 34592673280.

The previous prime is 40440478423. The next prime is 40440478459. The reversal of 40440478441 is 14487404404.

It is an interprime number because it is at equal distance from previous prime (40440478423) and next prime (40440478459).

It is not a de Polignac number, because 40440478441 - 2⁵ = 40440478409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40440478394 and 40440478403.

It is not an unprimeable number, because it can be changed into a prime (40440478471) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 771045 + ... + 821821.

It is an arithmetic number, because the mean of its divisors is an integer number (2920242780).

Almost surely, 2^40440478441 is an apocalyptic number.

It is an amenable number.

40440478441 is a deficient number, since it is larger than the sum of its proper divisors (6283406039).

40440478441 is a wasteful number, since it uses less digits than its factorization.

40440478441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55064.

The product of its (nonzero) digits is 229376, while the sum is 40.

The spelling of 40440478441 in words is "forty billion, four hundred forty million, four hundred seventy-eight thousand, four hundred forty-one".