424940 has 12 divisors (see below), whose sum is σ = 892416. Its totient is φ = 169968.

The previous prime is 424939. The next prime is 424961. The reversal of 424940 is 49424.

It is a happy number.

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 an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10604 + ... + 10643.

It is an arithmetic number, because the mean of its divisors is an integer number (74368).

2⁴²⁴⁹⁴⁰ is an apocalyptic number.

It is an amenable number.

424940 is an abundant number, since it is smaller than the sum of its proper divisors (467476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

424940 is a wasteful number, since it uses less digits than its factorization.

424940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21256 (or 21254 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 424940 is about 651.8742209967. The cubic root of 424940 is about 75.1811915388.

The spelling of 424940 in words is "four hundred twenty-four thousand, nine hundred forty".