42044936 has 8 divisors (see below), whose sum is σ = 78834270. Its totient is φ = 21022464.

The previous prime is 42044917. The next prime is 42044939. The reversal of 42044936 is 63944024.

It can be written as a sum of positive squares in only one way, i.e., 38068900 + 3976036 = 6170^2 + 1994^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (42044939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2627801 + ... + 2627816.

Almost surely, 2^42044936 is an apocalyptic number.

It is an amenable number.

42044936 is a deficient number, since it is larger than the sum of its proper divisors (36789334).

42044936 is a wasteful number, since it uses less digits than its factorization.

42044936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5255623 (or 5255619 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 42044936 is about 6484.2066592606. The cubic root of 42044936 is about 347.7265875525.

The spelling of 42044936 in words is "forty-two million, forty-four thousand, nine hundred thirty-six".