424884138 has 32 divisors (see below), whose sum is σ = 982872576. Its totient is φ = 119931888.

The previous prime is 424884067. The next prime is 424884139. The reversal of 424884138 is 831488424.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 424884138.

It is not an unprimeable number, because it can be changed into a prime (424884139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57456 + ... + 64427.

It is an arithmetic number, because the mean of its divisors is an integer number (30714768).

Almost surely, 2^424884138 is an apocalyptic number.

424884138 is an abundant number, since it is smaller than the sum of its proper divisors (557988438).

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

424884138 is a wasteful number, since it uses less digits than its factorization.

424884138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121978.

The product of its digits is 196608, while the sum is 42.

The square root of 424884138 is about 20612.7178702858. The cubic root of 424884138 is about 751.7789699074.

The spelling of 424884138 in words is "four hundred twenty-four million, eight hundred eighty-four thousand, one hundred thirty-eight".