42384434 has 8 divisors (see below), whose sum is σ = 67316508. Its totient is φ = 19945600.

The previous prime is 42384431. The next prime is 42384437. The reversal of 42384434 is 43448324.

It is an interprime number because it is at equal distance from previous prime (42384431) and next prime (42384437).

It can be written as a sum of positive squares in 2 ways, for example, as 41667025 + 717409 = 6455^2 + 847^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 42384434.

It is not an unprimeable number, because it can be changed into a prime (42384431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 623267 + ... + 623334.

Almost surely, 2^42384434 is an apocalyptic number.

42384434 is a deficient number, since it is larger than the sum of its proper divisors (24932074).

42384434 is a wasteful number, since it uses less digits than its factorization.

42384434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246620.

The product of its digits is 36864, while the sum is 32.

The square root of 42384434 is about 6510.3328639940. The cubic root of 42384434 is about 348.6600028136.

The spelling of 42384434 in words is "forty-two million, three hundred eighty-four thousand, four hundred thirty-four".