424491440 has 20 divisors (see below), whose sum is σ = 986942784. Its totient is φ = 169796544.

The previous prime is 424491439. The next prime is 424491443. The reversal of 424491440 is 44194424.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 424491397 and 424491406.

It is not an unprimeable number, because it can be changed into a prime (424491443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2652992 + ... + 2653151.

Almost surely, 2^424491440 is an apocalyptic number.

424491440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

424491440 is an abundant number, since it is smaller than the sum of its proper divisors (562451344).

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

424491440 is a wasteful number, since it uses less digits than its factorization.

424491440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5306156 (or 5306150 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 424491440 is about 20603.1900442626. The cubic root of 424491440 is about 751.5472886316.

The spelling of 424491440 in words is "four hundred twenty-four million, four hundred ninety-one thousand, four hundred forty".