42726471 has 4 divisors (see below), whose sum is σ = 56968632. Its totient is φ = 28484312.

The previous prime is 42726407. The next prime is 42726493. The reversal of 42726471 is 17462724.

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

It is a cyclic number.

It is not a de Polignac number, because 42726471 - 2⁶ = 42726407 is a prime.

It is a super-3 number, since 3×42726471³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42726371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7121076 + ... + 7121081.

It is an arithmetic number, because the mean of its divisors is an integer number (14242158).

Almost surely, 2^42726471 is an apocalyptic number.

42726471 is a deficient number, since it is larger than the sum of its proper divisors (14242161).

42726471 is a wasteful number, since it uses less digits than its factorization.

42726471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14242160.

The product of its digits is 18816, while the sum is 33.

The square root of 42726471 is about 6536.5488600637. The cubic root of 42726471 is about 349.5953718534.

The spelling of 42726471 in words is "forty-two million, seven hundred twenty-six thousand, four hundred seventy-one".