42387854 has 4 divisors (see below), whose sum is σ = 63581784. Its totient is φ = 21193926.

The previous prime is 42387853. The next prime is 42387859. The reversal of 42387854 is 45878324.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42387853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10596962 + ... + 10596965.

It is an arithmetic number, because the mean of its divisors is an integer number (15895446).

Almost surely, 2^42387854 is an apocalyptic number.

42387854 is a deficient number, since it is larger than the sum of its proper divisors (21193930).

42387854 is a wasteful number, since it uses less digits than its factorization.

42387854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21193929.

The product of its digits is 215040, while the sum is 41.

The square root of 42387854 is about 6510.5955180767. The cubic root of 42387854 is about 348.6693803533.

The spelling of 42387854 in words is "forty-two million, three hundred eighty-seven thousand, eight hundred fifty-four".