207406802140 has 12 divisors (see below), whose sum is σ = 435554284536. Its totient is φ = 82962720848.

The previous prime is 207406802107. The next prime is 207406802149. The reversal of 207406802140 is 41208604702.

It is a happy number.

It is a super-2 number, since 2×207406802140² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 207406802096 and 207406802105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207406802149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5185170034 + ... + 5185170073.

It is an arithmetic number, because the mean of its divisors is an integer number (36296190378).

Almost surely, 2^207406802140 is an apocalyptic number.

207406802140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

207406802140 is an abundant number, since it is smaller than the sum of its proper divisors (228147482396).

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

207406802140 is a wasteful number, since it uses less digits than its factorization.

207406802140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10370340116 (or 10370340114 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The spelling of 207406802140 in words is "two hundred seven billion, four hundred six million, eight hundred two thousand, one hundred forty".