42766534 has 4 divisors (see below), whose sum is σ = 64149804. Its totient is φ = 21383266.

The previous prime is 42766523. The next prime is 42766589. The reversal of 42766534 is 43566724.

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

It is a junction number, because it is equal to n+sod(n) for n = 42766493 and 42766502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10691632 + ... + 10691635.

It is an arithmetic number, because the mean of its divisors is an integer number (16037451).

Almost surely, 2^42766534 is an apocalyptic number.

42766534 is a deficient number, since it is larger than the sum of its proper divisors (21383270).

42766534 is a wasteful number, since it uses less digits than its factorization.

42766534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21383269.

The product of its digits is 120960, while the sum is 37.

The square root of 42766534 is about 6539.6126796623. The cubic root of 42766534 is about 349.7046051831.

The spelling of 42766534 in words is "forty-two million, seven hundred sixty-six thousand, five hundred thirty-four".