355240390240 has 24 divisors (see below), whose sum is σ = 839255422320. Its totient is φ = 142096156032.

The previous prime is 355240390207. The next prime is 355240390247. The reversal of 355240390240 is 42093042553.

It is a self number, because there is not a number n which added to its sum of digits gives 355240390240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355240390247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1110126060 + ... + 1110126379.

It is an arithmetic number, because the mean of its divisors is an integer number (34968975930).

Almost surely, 2^355240390240 is an apocalyptic number.

It is an amenable number.

355240390240 is an abundant number, since it is smaller than the sum of its proper divisors (484015032080).

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

355240390240 is a wasteful number, since it uses less digits than its factorization.

355240390240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220252454 (or 2220252446 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 37.

The spelling of 355240390240 in words is "three hundred fifty-five billion, two hundred forty million, three hundred ninety thousand, two hundred forty".