355421012 has 12 divisors (see below), whose sum is σ = 625424436. Its totient is φ = 176728320.

The previous prime is 355421009. The next prime is 355421029. The reversal of 355421012 is 210124553.

It can be written as a sum of positive squares in 2 ways, for example, as 40500496 + 314920516 = 6364^2 + 17746^2 .

It is a super-2 number, since 2×355421012² = 252648191542208288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244733 + ... + 246180.

It is an arithmetic number, because the mean of its divisors is an integer number (52118703).

Almost surely, 2^355421012 is an apocalyptic number.

It is an amenable number.

355421012 is a deficient number, since it is larger than the sum of its proper divisors (270003424).

355421012 is a wasteful number, since it uses less digits than its factorization.

355421012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491098 (or 491096 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 355421012 is about 18852.6128693081. The cubic root of 355421012 is about 708.3496761843.

Adding to 355421012 its reverse (210124553), we get a palindrome (565545565).

The spelling of 355421012 in words is "three hundred fifty-five million, four hundred twenty-one thousand, twelve".