42563436 has 12 divisors (see below), whose sum is σ = 99314712. Its totient is φ = 14187808.

The previous prime is 42563429. The next prime is 42563459. The reversal of 42563436 is 63436524.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 42563397 and 42563406.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1773465 + ... + 1773488.

It is an arithmetic number, because the mean of its divisors is an integer number (8276226).

Almost surely, 2^42563436 is an apocalyptic number.

It is an amenable number.

42563436 is an abundant number, since it is smaller than the sum of its proper divisors (56751276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42563436 is a wasteful number, since it uses less digits than its factorization.

42563436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3546960 (or 3546958 counting only the distinct ones).

The product of its digits is 51840, while the sum is 33.

The square root of 42563436 is about 6524.0659101514. The cubic root of 42563436 is about 349.1501448909.

The spelling of 42563436 in words is "forty-two million, five hundred sixty-three thousand, four hundred thirty-six".