42743471 has 8 divisors (see below), whose sum is σ = 43503120. Its totient is φ = 41988672.

The previous prime is 42743417. The next prime is 42743479. The reversal of 42743471 is 17434724.

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 42743471 - 2²² = 38549167 is a prime.

It is a super-3 number, since 3×42743471³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42743479) 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, 19625 + ... + 21693.

It is an arithmetic number, because the mean of its divisors is an integer number (5437890).

Almost surely, 2^42743471 is an apocalyptic number.

42743471 is a deficient number, since it is larger than the sum of its proper divisors (759649).

42743471 is a wasteful number, since it uses less digits than its factorization.

42743471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425.

The product of its digits is 18816, while the sum is 32.

The square root of 42743471 is about 6537.8491111374. The cubic root of 42743471 is about 349.6417313517.

The spelling of 42743471 in words is "forty-two million, seven hundred forty-three thousand, four hundred seventy-one".