424124865 has 24 divisors (see below), whose sum is σ = 736513128. Its totient is φ = 225780480.

The previous prime is 424124849. The next prime is 424124873. The reversal of 424124865 is 568421424.

It can be written as a sum of positive squares in 4 ways, for example, as 15397776 + 408727089 = 3924^2 + 20217^2 .

It is not a de Polignac number, because 424124865 - 2⁴ = 424124849 is a prime.

It is a super-2 number, since 2×424124865² = 359763802222536450, which contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 16605 + ... + 33525.

It is an arithmetic number, because the mean of its divisors is an integer number (30688047).

Almost surely, 2^424124865 is an apocalyptic number.

424124865 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

424124865 is a deficient number, since it is larger than the sum of its proper divisors (312388263).

424124865 is a wasteful number, since it uses less digits than its factorization.

424124865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17489 (or 17486 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 424124865 is about 20594.2920490120. The cubic root of 424124865 is about 751.3308902446.

The spelling of 424124865 in words is "four hundred twenty-four million, one hundred twenty-four thousand, eight hundred sixty-five".