405950 has 24 divisors (see below), whose sum is σ = 790128. Its totient is φ = 154880.

The previous prime is 405949. The next prime is 405959. The reversal of 405950 is 59504.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405959) 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 in 11 ways as a sum of consecutive naturals, for example, 974 + ... + 1326.

It is an arithmetic number, because the mean of its divisors is an integer number (32922).

2⁴⁰⁵⁹⁵⁰ is an apocalyptic number.

405950 is a deficient number, since it is larger than the sum of its proper divisors (384178).

405950 is a wasteful number, since it uses less digits than its factorization.

405950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 405950 is about 637.1420563736. The cubic root of 405950 is about 74.0441664757.

The spelling of 405950 in words is "four hundred five thousand, nine hundred fifty".