424424240 has 20 divisors (see below), whose sum is σ = 986786544. Its totient is φ = 169769664.

The previous prime is 424424239. The next prime is 424424243. The reversal of 424424240 is 42424424.

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

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (424424243) 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, 2652572 + ... + 2652731.

Almost surely, 2^424424240 is an apocalyptic number.

424424240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

424424240 is an abundant number, since it is smaller than the sum of its proper divisors (562362304).

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

424424240 is a wasteful number, since it uses less digits than its factorization.

424424240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5305316 (or 5305310 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

The square root of 424424240 is about 20601.5591642963. The cubic root of 424424240 is about 751.5076281200.

Adding to 424424240 its reverse (42424424), we get a palindrome (466848664).

The spelling of 424424240 in words is "four hundred twenty-four million, four hundred twenty-four thousand, two hundred forty".