40400345554 has 8 divisors (see below), whose sum is σ = 60625891980. Its totient is φ = 20191714896.

The previous prime is 40400345501. The next prime is 40400345581. The reversal of 40400345554 is 45554300404.

It can be written as a sum of positive squares in 2 ways, for example, as 40029205329 + 371140225 = 200073^2 + 19265^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4222969 + ... + 4232524.

Almost surely, 2^40400345554 is an apocalyptic number.

40400345554 is a deficient number, since it is larger than the sum of its proper divisors (20225546426).

40400345554 is a wasteful number, since it uses less digits than its factorization.

40400345554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8457884.

The product of its (nonzero) digits is 96000, while the sum is 34.

Adding to 40400345554 its reverse (45554300404), we get a palindrome (85954645958).

The spelling of 40400345554 in words is "forty billion, four hundred million, three hundred forty-five thousand, five hundred fifty-four".