42548644 has 6 divisors (see below), whose sum is σ = 74460134. Its totient is φ = 21274320.

The previous prime is 42548633. The next prime is 42548687. The reversal of 42548644 is 44684524.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 40475044 + 2073600 = 6362^2 + 1440^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5318577 + ... + 5318584.

Almost surely, 2^42548644 is an apocalyptic number.

It is an amenable number.

42548644 is a deficient number, since it is larger than the sum of its proper divisors (31911490).

42548644 is a wasteful number, since it uses less digits than its factorization.

42548644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10637165 (or 10637163 counting only the distinct ones).

The product of its digits is 122880, while the sum is 37.

The square root of 42548644 is about 6522.9321627624. The cubic root of 42548644 is about 349.1096936819.

The spelling of 42548644 in words is "forty-two million, five hundred forty-eight thousand, six hundred forty-four".