40343370334040 has 64 divisors (see below), whose sum is σ = 92512725449760. Its totient is φ = 15828170275840.

The previous prime is 40343370334031. The next prime is 40343370334187. The reversal of 40343370334040 is 4043307334304.

It is a junction number, because it is equal to n+sod(n) for n = 40343370333985 and 40343370334003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4323932 + ... + 9969108.

Almost surely, 2^{40343370334040} is an apocalyptic number.

40343370334040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40343370334040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46256362724880).

40343370334040 is an abundant number, since it is smaller than the sum of its proper divisors (52169355115720).

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

40343370334040 is a wasteful number, since it uses less digits than its factorization.

40343370334040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5648612 (or 5648608 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 38.

Adding to 40343370334040 its reverse (4043307334304), we get a palindrome (44386677668344).

The spelling of 40343370334040 in words is "forty trillion, three hundred forty-three billion, three hundred seventy million, three hundred thirty-four thousand, forty".