140404586805 has 48 divisors (see below), whose sum is σ = 292773486720. Its totient is φ = 60806795904.

The previous prime is 140404586783. The next prime is 140404586821. The reversal of 140404586805 is 508685404041.

It is a happy number.

It is not a de Polignac number, because 140404586805 - 2²¹ = 140402489653 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11723722 + ... + 11735691.

It is an arithmetic number, because the mean of its divisors is an integer number (6099447640).

Almost surely, 2^140404586805 is an apocalyptic number.

140404586805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140404586805 is an abundant number, since it is smaller than the sum of its proper divisors (152368899915).

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

140404586805 is a wasteful number, since it uses less digits than its factorization.

140404586805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23459450 (or 23459447 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 45.

The spelling of 140404586805 in words is "one hundred forty billion, four hundred four million, five hundred eighty-six thousand, eight hundred five".