42686254 has 16 divisors (see below), whose sum is σ = 69215328. Its totient is φ = 19626912.

The previous prime is 42686251. The next prime is 42686257. The reversal of 42686254 is 45268624.

It is an interprime number because it is at equal distance from previous prime (42686251) and next prime (42686257).

It is a super-3 number, since 3×42686254³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42686251) 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, 4239 + ... + 10165.

It is an arithmetic number, because the mean of its divisors is an integer number (4325958).

Almost surely, 2^42686254 is an apocalyptic number.

42686254 is a deficient number, since it is larger than the sum of its proper divisors (26529074).

42686254 is a wasteful number, since it uses less digits than its factorization.

42686254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6219.

The product of its digits is 92160, while the sum is 37.

The square root of 42686254 is about 6533.4718182602. The cubic root of 42686254 is about 349.4856499382.

The spelling of 42686254 in words is "forty-two million, six hundred eighty-six thousand, two hundred fifty-four".