424352639 has 2 divisors, whose sum is σ = 424352640. Its totient is φ = 424352638.

The previous prime is 424352627. The next prime is 424352651. The reversal of 424352639 is 936253424.

It is a balanced prime because it is at equal distance from previous prime (424352627) and next prime (424352651).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-424352639 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424352659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212176319 + 212176320.

It is an arithmetic number, because the mean of its divisors is an integer number (212176320).

Almost surely, 2^424352639 is an apocalyptic number.

424352639 is a deficient number, since it is larger than the sum of its proper divisors (1).

424352639 is an equidigital number, since it uses as much as digits as its factorization.

424352639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 38.

The square root of 424352639 is about 20599.8213341767. The cubic root of 424352639 is about 751.4653655921.

The spelling of 424352639 in words is "four hundred twenty-four million, three hundred fifty-two thousand, six hundred thirty-nine".