424665040 has 40 divisors (see below), whose sum is σ = 988651008. Its totient is φ = 169641600.

The previous prime is 424665011. The next prime is 424665047. The reversal of 424665040 is 40566424.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 424664993 and 424665011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424665047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65965 + ... + 72115.

Almost surely, 2^424665040 is an apocalyptic number.

424665040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

424665040 is an abundant number, since it is smaller than the sum of its proper divisors (563985968).

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

424665040 is a wasteful number, since it uses less digits than its factorization.

424665040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7027 (or 7021 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 424665040 is about 20607.4025534515. The cubic root of 424665040 is about 751.6497255837.

The spelling of 424665040 in words is "four hundred twenty-four million, six hundred sixty-five thousand, forty".