479978242 has 8 divisors (see below), whose sum is σ = 720093132. Its totient is φ = 239947200.

The previous prime is 479978231. The next prime is 479978299. The reversal of 479978242 is 242879974.

It can be written as a sum of positive squares in 2 ways, for example, as 426381201 + 53597041 = 20649^2 + 7321^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×479978242² = 460758225586821128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 479978242.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3859 + ... + 31222.

Almost surely, 2^479978242 is an apocalyptic number.

479978242 is a deficient number, since it is larger than the sum of its proper divisors (240114890).

479978242 is a wasteful number, since it uses less digits than its factorization.

479978242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41924.

The product of its digits is 2032128, while the sum is 52.

The square root of 479978242 is about 21908.4057384375. The cubic root of 479978242 is about 782.9616975425.

The spelling of 479978242 in words is "four hundred seventy-nine million, nine hundred seventy-eight thousand, two hundred forty-two".