424979478 has 96 divisors (see below), whose sum is σ = 1167678720. Its totient is φ = 108492480.

The previous prime is 424979461. The next prime is 424979483. The reversal of 424979478 is 874979424.

It is a happy number.

It is a congruent 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 47 ways as a sum of consecutive naturals, for example, 79176 + ... + 84372.

It is an arithmetic number, because the mean of its divisors is an integer number (12163320).

Almost surely, 2^424979478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 424979478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (583839360).

424979478 is an abundant number, since it is smaller than the sum of its proper divisors (742699242).

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

424979478 is a wasteful number, since it uses less digits than its factorization.

424979478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5282 (or 5279 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The square root of 424979478 is about 20615.0303904700. The cubic root of 424979478 is about 751.8351964095.

Subtracting from 424979478 its sum of digits (54), we obtain a palindrome (424979424).

The spelling of 424979478 in words is "four hundred twenty-four million, nine hundred seventy-nine thousand, four hundred seventy-eight".