424319985 has 32 divisors (see below), whose sum is σ = 787150080. Its totient is φ = 216463104.

The previous prime is 424319953. The next prime is 424319993. The reversal of 424319985 is 589913424.

It is not a de Polignac number, because 424319985 - 2⁵ = 424319953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 424319985.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65224 + ... + 71433.

It is an arithmetic number, because the mean of its divisors is an integer number (24598440).

Almost surely, 2^424319985 is an apocalyptic number.

424319985 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

424319985 is a deficient number, since it is larger than the sum of its proper divisors (362830095).

424319985 is a wasteful number, since it uses less digits than its factorization.

424319985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136694 (or 136688 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 424319985 is about 20599.0287392391. The cubic root of 424319985 is about 751.4460899730.

The spelling of 424319985 in words is "four hundred twenty-four million, three hundred nineteen thousand, nine hundred eighty-five".