355421124 has 18 divisors (see below), whose sum is σ = 898425710. Its totient is φ = 118473696.

The previous prime is 355421123. The next prime is 355421141. The reversal of 355421124 is 421124553.

355421124 is a `hidden beast` number, since 3 + 5 + 542 + 112 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 233539524 + 121881600 = 15282^2 + 11040^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (355421123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4936369 + ... + 4936440.

Almost surely, 2^355421124 is an apocalyptic number.

It is an amenable number.

355421124 is an abundant number, since it is smaller than the sum of its proper divisors (543004586).

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

355421124 is a wasteful number, since it uses less digits than its factorization.

355421124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9872819 (or 9872814 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 355421124 is about 18852.6158397184. The cubic root of 355421124 is about 708.3497505891.

Adding to 355421124 its reverse (421124553), we get a palindrome (776545677).

The spelling of 355421124 in words is "three hundred fifty-five million, four hundred twenty-one thousand, one hundred twenty-four".