42388058 has 4 divisors (see below), whose sum is σ = 63582090. Its totient is φ = 21194028.

The previous prime is 42388037. The next prime is 42388061. The reversal of 42388058 is 85088324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 22344529 + 20043529 = 4727^2 + 4477^2 .

It is a super-3 number, since 3×42388058³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10597013 + ... + 10597016.

Almost surely, 2^42388058 is an apocalyptic number.

42388058 is a deficient number, since it is larger than the sum of its proper divisors (21194032).

42388058 is a wasteful number, since it uses less digits than its factorization.

42388058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21194031.

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 42388058 is about 6510.6111848274. The cubic root of 42388058 is about 348.6699396994.

The spelling of 42388058 in words is "forty-two million, three hundred eighty-eight thousand, fifty-eight".