356481 has 16 divisors (see below), whose sum is σ = 537920. Its totient is φ = 236196.

The previous prime is 356479. The next prime is 356501. The reversal of 356481 is 184653.

It is not a de Polignac number, because 356481 - 2¹ = 356479 is a prime.

It is a super-2 number, since 2×356481² = 254157406722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 356481.

It is not an unprimeable number, because it can be changed into a prime (356441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2106 + ... + 2268.

It is an arithmetic number, because the mean of its divisors is an integer number (33620).

2³⁵⁶⁴⁸¹ is an apocalyptic number.

It is an amenable number.

356481 is a deficient number, since it is larger than the sum of its proper divisors (181439).

356481 is an frugal number, since it uses more digits than its factorization.

356481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 166 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 356481 is about 597.0602984624. The cubic root of 356481 is about 70.9053158291.

356481 divided by its sum of digits (27) gives a triangular number (13203 = T₁₆₂).

The spelling of 356481 in words is "three hundred fifty-six thousand, four hundred eighty-one".