355402240000 has 130 divisors (see below), whose sum is σ = 888119249930. Its totient is φ = 142159872000.

The previous prime is 355402239977. The next prime is 355402240009. The reversal of 355402240000 is 42204553.

It can be written as a sum of positive squares in 5 ways, for example, as 171038490624 + 184363749376 = 413568^2 + 429376^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355402240009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2490586 + ... + 2629414.

Almost surely, 2^355402240000 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 355402240000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (444059624965).

355402240000 is an abundant number, since it is smaller than the sum of its proper divisors (532717009930).

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

355402240000 is an frugal number, since it uses more digits than its factorization.

355402240000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138873 (or 138836 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 355402240000 its reverse (42204553), we get a palindrome (355444444553).

The spelling of 355402240000 in words is "three hundred fifty-five billion, four hundred two million, two hundred forty thousand".