140204036406 has 16 divisors (see below), whose sum is σ = 320466369024. Its totient is φ = 40058296104.

The previous prime is 140204036393. The next prime is 140204036431. The reversal of 140204036406 is 604630402041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1669095630 + ... + 1669095713.

It is an arithmetic number, because the mean of its divisors is an integer number (20029148064).

Almost surely, 2^140204036406 is an apocalyptic number.

140204036406 is an abundant number, since it is smaller than the sum of its proper divisors (180262332618).

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

140204036406 is a wasteful number, since it uses less digits than its factorization.

140204036406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3338191355.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 140204036406 its reverse (604630402041), we get a palindrome (744834438447).

The spelling of 140204036406 in words is "one hundred forty billion, two hundred four million, thirty-six thousand, four hundred six".