42648680 has 16 divisors (see below), whose sum is σ = 95959620. Its totient is φ = 17059456.

The previous prime is 42648677. The next prime is 42648689. The reversal of 42648680 is 8684624.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 41242084 + 1406596 = 6422^2 + 1186^2 .

It is not an unprimeable number, because it can be changed into a prime (42648689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533069 + ... + 533148.

Almost surely, 2^42648680 is an apocalyptic number.

42648680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42648680 is an abundant number, since it is smaller than the sum of its proper divisors (53310940).

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

42648680 is a wasteful number, since it uses less digits than its factorization.

42648680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066228 (or 1066224 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 38.

The square root of 42648680 is about 6530.5956849280. The cubic root of 42648680 is about 349.3830764910.

The spelling of 42648680 in words is "forty-two million, six hundred forty-eight thousand, six hundred eighty".