42271031 has 8 divisors (see below), whose sum is σ = 46283664. Its totient is φ = 38286720.

The previous prime is 42271003. The next prime is 42271039. The reversal of 42271031 is 13017224.

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 42271031 - 2⁶ = 42270967 is a prime.

It is a super-2 number, since 2×42271031² = 3573680123605922, 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 = 42270994 and 42271012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42271039) 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, 3890 + ... + 9983.

It is an arithmetic number, because the mean of its divisors is an integer number (5785458).

Almost surely, 2^42271031 is an apocalyptic number.

42271031 is a deficient number, since it is larger than the sum of its proper divisors (4012633).

42271031 is a wasteful number, since it uses less digits than its factorization.

42271031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14161.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 42271031 is about 6501.6175679595. The cubic root of 42271031 is about 348.3487690074.

Adding to 42271031 its reverse (13017224), we get a palindrome (55288255).

The spelling of 42271031 in words is "forty-two million, two hundred seventy-one thousand, thirty-one".