40443256554 has 8 divisors (see below), whose sum is σ = 80886513120. Its totient is φ = 13481085516.

The previous prime is 40443256543. The next prime is 40443256561. The reversal of 40443256554 is 45565234404.

It is a happy number.

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

40443256554 is an admirable number.

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, 3370271374 + ... + 3370271385.

It is an arithmetic number, because the mean of its divisors is an integer number (10110814140).

Almost surely, 2^40443256554 is an apocalyptic number.

40443256554 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40443256554 is a wasteful number, since it uses less digits than its factorization.

40443256554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6740542764.

The product of its (nonzero) digits is 1152000, while the sum is 42.

The spelling of 40443256554 in words is "forty billion, four hundred forty-three million, two hundred fifty-six thousand, five hundred fifty-four".