354500023205240 has 128 divisors (see below), whose sum is σ = 873568972108800. Its totient is φ = 128400712504320.

The previous prime is 354500023205221. The next prime is 354500023205257. The reversal of 354500023205240 is 42502320005453.

It is a Cunningham number, because it is equal to 18828171²-1.

It is a self number, because there is not a number n which added to its sum of digits gives 354500023205240.

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, 828225524 + ... + 828653436.

It is an arithmetic number, because the mean of its divisors is an integer number (6824757594600).

Almost surely, 2^{354500023205240} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 354500023205240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (436784486054400).

354500023205240 is an abundant number, since it is smaller than the sum of its proper divisors (519068948903560).

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

354500023205240 is a wasteful number, since it uses less digits than its factorization.

354500023205240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435357 (or 435353 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 35.

The spelling of 354500023205240 in words is "three hundred fifty-four trillion, five hundred billion, twenty-three million, two hundred five thousand, two hundred forty".