424023669 has 12 divisors (see below), whose sum is σ = 612761292. Its totient is φ = 282552000.

The previous prime is 424023667. The next prime is 424023671. The reversal of 424023669 is 966320424.

It is an interprime number because it is at equal distance from previous prime (424023667) and next prime (424023671).

It can be written as a sum of positive squares in 2 ways, for example, as 128527569 + 295496100 = 11337^2 + 17190^2 .

It is not a de Polignac number, because 424023669 - 2¹ = 424023667 is a prime.

It is a super-2 number, since 2×424023669² = 359592143744443122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424023667) 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, 12319 + ... + 31619.

It is an arithmetic number, because the mean of its divisors is an integer number (51063441).

Almost surely, 2^424023669 is an apocalyptic number.

It is an amenable number.

424023669 is a deficient number, since it is larger than the sum of its proper divisors (188737623).

424023669 is a wasteful number, since it uses less digits than its factorization.

424023669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21748 (or 21745 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 424023669 is about 20591.8350080803. The cubic root of 424023669 is about 751.2711297551.

The spelling of 424023669 in words is "four hundred twenty-four million, twenty-three thousand, six hundred sixty-nine".