42549286 has 16 divisors (see below), whose sum is σ = 69565104. Its totient is φ = 19400544.

The previous prime is 42549281. The next prime is 42549289. The reversal of 42549286 is 68294524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42549281) 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, 7701 + ... + 12016.

It is an arithmetic number, because the mean of its divisors is an integer number (4347819).

Almost surely, 2^42549286 is an apocalyptic number.

42549286 is a deficient number, since it is larger than the sum of its proper divisors (27015818).

42549286 is a wasteful number, since it uses less digits than its factorization.

42549286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19815.

The product of its digits is 138240, while the sum is 40.

The square root of 42549286 is about 6522.9813735745. The cubic root of 42549286 is about 349.1114495333. Note that the first 3 decimals are identical.

The spelling of 42549286 in words is "forty-two million, five hundred forty-nine thousand, two hundred eighty-six".