42434403 has 8 divisors (see below), whose sum is σ = 61722816. Its totient is φ = 25717800.

The previous prime is 42434401. The next prime is 42434411. The reversal of 42434403 is 30443424.

It is a happy number.

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

It is not a de Polignac number, because 42434403 - 2¹ = 42434401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42434401) 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, 642913 + ... + 642978.

It is an arithmetic number, because the mean of its divisors is an integer number (7715352).

Almost surely, 2^42434403 is an apocalyptic number.

42434403 is a deficient number, since it is larger than the sum of its proper divisors (19288413).

42434403 is a wasteful number, since it uses less digits than its factorization.

42434403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285905.

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 42434403 is about 6514.1694021571. The cubic root of 42434403 is about 348.7969662214.

Adding to 42434403 its reverse (30443424), we get a palindrome (72877827).

It can be divided in two parts, 4243 and 4403, that added together give a triangular number (8646 = T₁₃₁).

The spelling of 42434403 in words is "forty-two million, four hundred thirty-four thousand, four hundred three".