40043403554 has 64 divisors (see below), whose sum is σ = 76059648000. Its totient is φ = 15358075200.

The previous prime is 40043403541. The next prime is 40043403571. The reversal of 40043403554 is 45530434004.

It is a self number, because there is not a number n which added to its sum of digits gives 40043403554.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4241219 + ... + 4250649.

It is an arithmetic number, because the mean of its divisors is an integer number (1188432000).

Almost surely, 2^40043403554 is an apocalyptic number.

40043403554 is a deficient number, since it is larger than the sum of its proper divisors (36016244446).

40043403554 is a wasteful number, since it uses less digits than its factorization.

40043403554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9879.

The product of its (nonzero) digits is 57600, while the sum is 32.

Adding to 40043403554 its reverse (45530434004), we get a palindrome (85573837558).

The spelling of 40043403554 in words is "forty billion, forty-three million, four hundred three thousand, five hundred fifty-four".