340550511561240 has 128 divisors (see below), whose sum is σ = 1031457185256960. Its totient is φ = 89942280249344.

The previous prime is 340550511561163. The next prime is 340550511561259. The reversal of 340550511561240 is 42165115055043.

It is a junction number, because it is equal to n+sod(n) for n = 340550511561192 and 340550511561201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48140344 + ... + 54759416.

It is an arithmetic number, because the mean of its divisors is an integer number (8058259259820).

Almost surely, 2^{340550511561240} is an apocalyptic number.

340550511561240 is a gapful number since it is divisible by the number (30) 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 340550511561240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (515728592628480).

340550511561240 is an abundant number, since it is smaller than the sum of its proper divisors (690906673695720).

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

340550511561240 is a wasteful number, since it uses less digits than its factorization.

340550511561240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6623201 (or 6623197 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 42.

The spelling of 340550511561240 in words is "three hundred forty trillion, five hundred fifty billion, five hundred eleven million, five hundred sixty-one thousand, two hundred forty".