42656650 has 12 divisors (see below), whose sum is σ = 79341462. Its totient is φ = 17062640.

The previous prime is 42656641. The next prime is 42656659. The reversal of 42656650 is 5665624.

It is an interprime number because it is at equal distance from previous prime (42656641) and next prime (42656659).

It can be written as a sum of positive squares in 3 ways, for example, as 20875761 + 21780889 = 4569^2 + 4667^2 .

It is not an unprimeable number, because it can be changed into a prime (42656659) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 426517 + ... + 426616.

Almost surely, 2^42656650 is an apocalyptic number.

42656650 is a deficient number, since it is larger than the sum of its proper divisors (36684812).

42656650 is a wasteful number, since it uses less digits than its factorization.

42656650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853145 (or 853140 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 42656650 is about 6531.2058610949. The cubic root of 42656650 is about 349.4048388659.

The spelling of 42656650 in words is "forty-two million, six hundred fifty-six thousand, six hundred fifty".