10400340040 has 32 divisors (see below), whose sum is σ = 24155631360. Its totient is φ = 4025937600.

The previous prime is 10400340029. The next prime is 10400340059. The reversal of 10400340040 is 4004300401.

It is a junction number, because it is equal to n+sod(n) for n = 10400339996 and 10400340023.

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, 4192446 + ... + 4194925.

It is an arithmetic number, because the mean of its divisors is an integer number (754863480).

Almost surely, 2^10400340040 is an apocalyptic number.

10400340040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10400340040 is an abundant number, since it is smaller than the sum of its proper divisors (13755291320).

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

10400340040 is a wasteful number, since it uses less digits than its factorization.

10400340040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8387413 (or 8387409 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 10400340040 its reverse (4004300401), we get a palindrome (14404640441).

The spelling of 10400340040 in words is "ten billion, four hundred million, three hundred forty thousand, forty".