42254031 has 4 divisors (see below), whose sum is σ = 56338712. Its totient is φ = 28169352.

The previous prime is 42253973. The next prime is 42254041. The reversal of 42254031 is 13045224.

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

It is not a de Polignac number, because 42254031 - 2¹¹ = 42251983 is a prime.

It is a super-2 number, since 2×42254031² = 3570806271497922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42253989 and 42254007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42254041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7042336 + ... + 7042341.

It is an arithmetic number, because the mean of its divisors is an integer number (14084678).

Almost surely, 2^42254031 is an apocalyptic number.

42254031 is a deficient number, since it is larger than the sum of its proper divisors (14084681).

42254031 is a wasteful number, since it uses less digits than its factorization.

42254031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14084680.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 42254031 is about 6500.3100695275. The cubic root of 42254031 is about 348.3020646571.

Adding to 42254031 its reverse (13045224), we get a palindrome (55299255).

It can be divided in two parts, 4225 and 4031, that added together give a triangular number (8256 = T₁₂₈).

The spelling of 42254031 in words is "forty-two million, two hundred fifty-four thousand, thirty-one".