42734529 has 12 divisors (see below), whose sum is σ = 64411776. Its totient is φ = 27250872.

The previous prime is 42734521. The next prime is 42734537. The reversal of 42734529 is 92543724.

It is an interprime number because it is at equal distance from previous prime (42734521) and next prime (42734537).

It is not a de Polignac number, because 42734529 - 2³ = 42734521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42734493 and 42734502.

It is not an unprimeable number, because it can be changed into a prime (42734521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103017 + ... + 103430.

It is an arithmetic number, because the mean of its divisors is an integer number (5367648).

Almost surely, 2^42734529 is an apocalyptic number.

It is an amenable number.

42734529 is a deficient number, since it is larger than the sum of its proper divisors (21677247).

42734529 is a wasteful number, since it uses less digits than its factorization.

42734529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206476 (or 206473 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 42734529 is about 6537.1652113129. The cubic root of 42734529 is about 349.6173477882.

The spelling of 42734529 in words is "forty-two million, seven hundred thirty-four thousand, five hundred twenty-nine".