40021404035 has 16 divisors (see below), whose sum is σ = 51841823040. Its totient is φ = 29569034880.

The previous prime is 40021404013. The next prime is 40021404089. The reversal of 40021404035 is 53040412004.

It is not a de Polignac number, because 40021404035 - 2⁶ = 40021403971 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 40021404035.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5996876 + ... + 6003545.

It is an arithmetic number, because the mean of its divisors is an integer number (3240113940).

Almost surely, 2^40021404035 is an apocalyptic number.

40021404035 is a deficient number, since it is larger than the sum of its proper divisors (11820419005).

40021404035 is a wasteful number, since it uses less digits than its factorization.

40021404035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12000478.

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 40021404035 its reverse (53040412004), we get a palindrome (93061816039).

The spelling of 40021404035 in words is "forty billion, twenty-one million, four hundred four thousand, thirty-five".