424289538 has 24 divisors (see below), whose sum is σ = 923968188. Its totient is φ = 140710752.

The previous prime is 424289531. The next prime is 424289573. The reversal of 424289538 is 835982424.

It can be written as a sum of positive squares in 2 ways, for example, as 331494849 + 92794689 = 18207^2 + 9633^2 .

It is a super-2 number, since 2×424289538² = 360043224112506888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 424289493 and 424289502.

It is not an unprimeable number, because it can be changed into a prime (424289531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56281 + ... + 63372.

Almost surely, 2^424289538 is an apocalyptic number.

424289538 is an abundant number, since it is smaller than the sum of its proper divisors (499678650).

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

424289538 is a wasteful number, since it uses less digits than its factorization.

424289538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119858 (or 119855 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 424289538 is about 20598.2896862822. The cubic root of 424289538 is about 751.4281162526.

The spelling of 424289538 in words is "four hundred twenty-four million, two hundred eighty-nine thousand, five hundred thirty-eight".