409048 has 8 divisors (see below), whose sum is σ = 766980. Its totient is φ = 204520.

The previous prime is 409043. The next prime is 409063. The reversal of 409048 is 840904.

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409043) 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, 25558 + ... + 25573.

2⁴⁰⁹⁰⁴⁸ is an apocalyptic number.

It is an amenable number.

409048 is a deficient number, since it is larger than the sum of its proper divisors (357932).

409048 is a wasteful number, since it uses less digits than its factorization.

409048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51137 (or 51133 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 409048 is about 639.5686046078. The cubic root of 409048 is about 74.2320449203.

The spelling of 409048 in words is "four hundred nine thousand, forty-eight".