42519028 has 6 divisors (see below), whose sum is σ = 74408306. Its totient is φ = 21259512.

The previous prime is 42519007. The next prime is 42519041. The reversal of 42519028 is 82091524.

It can be written as a sum of positive squares in only one way, i.e., 39463524 + 3055504 = 6282^2 + 1748^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5314875 + ... + 5314882.

Almost surely, 2^42519028 is an apocalyptic number.

It is an amenable number.

42519028 is a deficient number, since it is larger than the sum of its proper divisors (31889278).

42519028 is a wasteful number, since it uses less digits than its factorization.

42519028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10629761 (or 10629759 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 42519028 is about 6520.6616228723. The cubic root of 42519028 is about 349.0286755693.

The spelling of 42519028 in words is "forty-two million, five hundred nineteen thousand, twenty-eight".