42154366 has 4 divisors (see below), whose sum is σ = 63231552. Its totient is φ = 21077182.

The previous prime is 42154363. The next prime is 42154367. The reversal of 42154366 is 66345124.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42154363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10538590 + ... + 10538593.

It is an arithmetic number, because the mean of its divisors is an integer number (15807888).

Almost surely, 2^42154366 is an apocalyptic number.

42154366 is a deficient number, since it is larger than the sum of its proper divisors (21077186).

42154366 is a wasteful number, since it uses less digits than its factorization.

42154366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21077185.

The product of its digits is 17280, while the sum is 31.

The square root of 42154366 is about 6492.6393708568. The cubic root of 42154366 is about 348.0280012260.

The spelling of 42154366 in words is "forty-two million, one hundred fifty-four thousand, three hundred sixty-six".