42563434 has 16 divisors (see below), whose sum is σ = 66398976. Its totient is φ = 20440800.

The previous prime is 42563429. The next prime is 42563459. The reversal of 42563434 is 43436524.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 42563396 and 42563405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5989 + ... + 10999.

It is an arithmetic number, because the mean of its divisors is an integer number (4149936).

Almost surely, 2^42563434 is an apocalyptic number.

42563434 is a deficient number, since it is larger than the sum of its proper divisors (23835542).

42563434 is a wasteful number, since it uses less digits than its factorization.

42563434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5181.

The product of its digits is 34560, while the sum is 31.

The square root of 42563434 is about 6524.0657568728. The cubic root of 42563434 is about 349.1501394222.

Adding to 42563434 its reverse (43436524), we get a palindrome (85999958).

The spelling of 42563434 in words is "forty-two million, five hundred sixty-three thousand, four hundred thirty-four".