42429489 has 8 divisors (see below), whose sum is σ = 59550240. Its totient is φ = 26797536.

The previous prime is 42429487. The next prime is 42429493. The reversal of 42429489 is 98492424.

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

It is not a de Polignac number, because 42429489 - 2¹ = 42429487 is a prime.

It is a super-2 number, since 2×42429489² = 3600523073602242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42429489.

It is not an unprimeable number, because it can be changed into a prime (42429481) 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, 372132 + ... + 372245.

It is an arithmetic number, because the mean of its divisors is an integer number (7443780).

Almost surely, 2^42429489 is an apocalyptic number.

It is an amenable number.

42429489 is a deficient number, since it is larger than the sum of its proper divisors (17120751).

42429489 is a wasteful number, since it uses less digits than its factorization.

42429489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744399.

The product of its digits is 165888, while the sum is 42.

The square root of 42429489 is about 6513.7922134499. The cubic root of 42429489 is about 348.7835018753.

It can be divided in two parts, 4242 and 9489, that added together give a palindrome (13731).

The spelling of 42429489 in words is "forty-two million, four hundred twenty-nine thousand, four hundred eighty-nine".