40200971406 has 32 divisors (see below), whose sum is σ = 83982624768. Its totient is φ = 12804723360.

The previous prime is 40200971401. The next prime is 40200971407. The reversal of 40200971406 is 60417900204.

It is a happy number.

It is a super-2 number, since 2×40200971406² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40200971401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10221 + ... + 283736.

It is an arithmetic number, because the mean of its divisors is an integer number (2624457024).

Almost surely, 2^40200971406 is an apocalyptic number.

40200971406 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

40200971406 is an abundant number, since it is smaller than the sum of its proper divisors (43781653362).

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

40200971406 is a wasteful number, since it uses less digits than its factorization.

40200971406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294976.

The product of its (nonzero) digits is 12096, while the sum is 33.

The spelling of 40200971406 in words is "forty billion, two hundred million, nine hundred seventy-one thousand, four hundred six".