42242154 has 32 divisors (see below), whose sum is σ = 88283520. Its totient is φ = 13457472.

The previous prime is 42242153. The next prime is 42242173. The reversal of 42242154 is 45124224.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (42242153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16744 + ... + 19100.

It is an arithmetic number, because the mean of its divisors is an integer number (2758860).

Almost surely, 2^42242154 is an apocalyptic number.

42242154 is an abundant number, since it is smaller than the sum of its proper divisors (46041366).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42242154 is a wasteful number, since it uses less digits than its factorization.

42242154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494.

The product of its digits is 2560, while the sum is 24.

The square root of 42242154 is about 6499.3964335160. The cubic root of 42242154 is about 348.2694273664.

Adding to 42242154 its reverse (45124224), we get a palindrome (87366378).

The spelling of 42242154 in words is "forty-two million, two hundred forty-two thousand, one hundred fifty-four".