4008405501040 has 20 divisors (see below), whose sum is σ = 9319542790104. Its totient is φ = 1603362200384.

The previous prime is 4008405501031. The next prime is 4008405501101. The reversal of 4008405501040 is 401055048004.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 4008405500993 and 4008405501011.

It is a congruent 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, 25052534302 + ... + 25052534461.

Almost surely, 2^{4008405501040} is an apocalyptic number.

4008405501040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4008405501040 is an abundant number, since it is smaller than the sum of its proper divisors (5311137289064).

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

4008405501040 is a wasteful number, since it uses less digits than its factorization.

4008405501040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50105068776 (or 50105068770 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

The spelling of 4008405501040 in words is "four trillion, eight billion, four hundred five million, five hundred one thousand, forty".