42041387 has 8 divisors (see below), whose sum is σ = 43565040. Its totient is φ = 40522720.

The previous prime is 42041381. The next prime is 42041399. The reversal of 42041387 is 78314024.

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 42041387 - 2²⁴ = 25264171 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42041381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27413 + ... + 28905.

It is an arithmetic number, because the mean of its divisors is an integer number (5445630).

Almost surely, 2^42041387 is an apocalyptic number.

42041387 is a deficient number, since it is larger than the sum of its proper divisors (1523653).

42041387 is a wasteful number, since it uses less digits than its factorization.

42041387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2493.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 42041387 is about 6483.9329885495. The cubic root of 42041387 is about 347.7168034461.

The spelling of 42041387 in words is "forty-two million, forty-one thousand, three hundred eighty-seven".