42388045 has 8 divisors (see below), whose sum is σ = 58132224. Its totient is φ = 29066064.

The previous prime is 42388037. The next prime is 42388061. The reversal of 42388045 is 54088324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42388045 - 2³ = 42388037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42388045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 605509 + ... + 605578.

It is an arithmetic number, because the mean of its divisors is an integer number (7266528).

Almost surely, 2^42388045 is an apocalyptic number.

It is an amenable number.

42388045 is a deficient number, since it is larger than the sum of its proper divisors (15744179).

42388045 is a wasteful number, since it uses less digits than its factorization.

42388045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211099.

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 42388045 is about 6510.6101864572. The cubic root of 42388045 is about 348.6699040549.

The spelling of 42388045 in words is "forty-two million, three hundred eighty-eight thousand, forty-five".