424240634 has 16 divisors (see below), whose sum is σ = 643456872. Its totient is φ = 209768448.

The previous prime is 424240633. The next prime is 424240637. The reversal of 424240634 is 436042424.

It can be written as a sum of positive squares in 4 ways, for example, as 385140625 + 39100009 = 19625^2 + 6253^2 .

It is a junction number, because it is equal to n+sod(n) for n = 424240597 and 424240606.

It is not an unprimeable number, because it can be changed into a prime (424240633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63602 + ... + 69954.

Almost surely, 2^424240634 is an apocalyptic number.

424240634 is a deficient number, since it is larger than the sum of its proper divisors (219216238).

424240634 is a wasteful number, since it uses less digits than its factorization.

424240634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6721.

The product of its (nonzero) digits is 18432, while the sum is 29.

The square root of 424240634 is about 20597.1025632248. The cubic root of 424240634 is about 751.3992450461.

The spelling of 424240634 in words is "four hundred twenty-four million, two hundred forty thousand, six hundred thirty-four".