42519388 has 6 divisors (see below), whose sum is σ = 74408936. Its totient is φ = 21259692.

The previous prime is 42519371. The next prime is 42519391. The reversal of 42519388 is 88391524.

It is a self number, because there is not a number n which added to its sum of digits gives 42519388.

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, 5314920 + ... + 5314927.

Almost surely, 2^42519388 is an apocalyptic number.

It is an amenable number.

42519388 is a deficient number, since it is larger than the sum of its proper divisors (31889548).

42519388 is a wasteful number, since it uses less digits than its factorization.

42519388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10629851 (or 10629849 counting only the distinct ones).

The product of its digits is 69120, while the sum is 40.

The square root of 42519388 is about 6520.6892273747. The cubic root of 42519388 is about 349.0296606182.

The spelling of 42519388 in words is "forty-two million, five hundred nineteen thousand, three hundred eighty-eight".