355421952 has 72 divisors (see below), whose sum is σ = 1051065680. Its totient is φ = 118471680.

The previous prime is 355421897. The next prime is 355421981. The reversal of 355421952 is 259124553.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18799 + ... + 32622.

Almost surely, 2^355421952 is an apocalyptic number.

355421952 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

355421952 is an abundant number, since it is smaller than the sum of its proper divisors (695643728).

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

355421952 is an equidigital number, since it uses as much as digits as its factorization.

355421952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51446 (or 51426 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 355421952 is about 18852.6377995229. The cubic root of 355421952 is about 708.3503006532.

The spelling of 355421952 in words is "three hundred fifty-five million, four hundred twenty-one thousand, nine hundred fifty-two".