40135004406 has 24 divisors (see below), whose sum is σ = 99381915984. Its totient is φ = 11467144080.

The previous prime is 40135004389. The next prime is 40135004443. The reversal of 40135004406 is 60440053104.

40135004406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40135004406² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40135004406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 159265765 + ... + 159266016.

It is an arithmetic number, because the mean of its divisors is an integer number (4140913166).

Almost surely, 2^40135004406 is an apocalyptic number.

40135004406 is an abundant number, since it is smaller than the sum of its proper divisors (59246911578).

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

40135004406 is a wasteful number, since it uses less digits than its factorization.

40135004406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318531796 (or 318531793 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The spelling of 40135004406 in words is "forty billion, one hundred thirty-five million, four thousand, four hundred six".