42567646 has 16 divisors (see below), whose sum is σ = 70698240. Its totient is φ = 19059480.

The previous prime is 42567631. The next prime is 42567653. The reversal of 42567646 is 64676524.

It is a junction number, because it is equal to n+sod(n) for n = 42567599 and 42567608.

It is a congruent number.

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, 12966 + ... + 15913.

It is an arithmetic number, because the mean of its divisors is an integer number (4418640).

Almost surely, 2^42567646 is an apocalyptic number.

42567646 is a deficient number, since it is larger than the sum of its proper divisors (28130594).

42567646 is a wasteful number, since it uses less digits than its factorization.

42567646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28959.

The product of its digits is 241920, while the sum is 40.

The square root of 42567646 is about 6524.3885537267. The cubic root of 42567646 is about 349.1616561299.

The spelling of 42567646 in words is "forty-two million, five hundred sixty-seven thousand, six hundred forty-six".