42734331 has 8 divisors (see below), whose sum is σ = 63310160. Its totient is φ = 28489536.

The previous prime is 42734323. The next prime is 42734333. The reversal of 42734331 is 13343724.

42734331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42734331 - 2³ = 42734323 is a prime.

It is a super-2 number, since 2×42734331² = 3652446092035122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1582753 = 42734331 / (4 + 2 + 7 + 3 + 4 + 3 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42734295 and 42734304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42734333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 791350 + ... + 791403.

It is an arithmetic number, because the mean of its divisors is an integer number (7913770).

Almost surely, 2^42734331 is an apocalyptic number.

42734331 is a deficient number, since it is larger than the sum of its proper divisors (20575829).

42734331 is a wasteful number, since it uses less digits than its factorization.

42734331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582762 (or 1582756 counting only the distinct ones).

The product of its digits is 6048, while the sum is 27.

The square root of 42734331 is about 6537.1500671164. The cubic root of 42734331 is about 349.6168078319.

The spelling of 42734331 in words is "forty-two million, seven hundred thirty-four thousand, three hundred thirty-one".