354478 has 4 divisors (see below), whose sum is σ = 531720. Its totient is φ = 177238.

The previous prime is 354469. The next prime is 354479. The reversal of 354478 is 874453.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 874453 = 419 ⋅2087.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354479) by changing a digit.

354478 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 88618 + ... + 88621.

It is an arithmetic number, because the mean of its divisors is an integer number (132930).

2³⁵⁴⁴⁷⁸ is an apocalyptic number.

354478 is a deficient number, since it is larger than the sum of its proper divisors (177242).

354478 is a wasteful number, since it uses less digits than its factorization.

354478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177241.

The product of its digits is 13440, while the sum is 31.

The square root of 354478 is about 595.3805505725. The cubic root of 354478 is about 70.7722650897.

The spelling of 354478 in words is "three hundred fifty-four thousand, four hundred seventy-eight".