403958 has 4 divisors (see below), whose sum is σ = 605940. Its totient is φ = 201978.

The previous prime is 403957. The next prime is 403969. The reversal of 403958 is 859304.

403958 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 403958.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100988 + ... + 100991.

It is an arithmetic number, because the mean of its divisors is an integer number (151485).

2⁴⁰³⁹⁵⁸ is an apocalyptic number.

403958 is a deficient number, since it is larger than the sum of its proper divisors (201982).

403958 is a wasteful number, since it uses less digits than its factorization.

403958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201981.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 403958 is about 635.5769032934. The cubic root of 403958 is about 73.9228560564.

The spelling of 403958 in words is "four hundred three thousand, nine hundred fifty-eight".