42286556 has 12 divisors (see below), whose sum is σ = 79693992. Its totient is φ = 19516848.

The previous prime is 42286549. The next prime is 42286561. The reversal of 42286556 is 65568224.

It is a super-2 number, since 2×42286556² = 3576305636682272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406550 + ... + 406653.

It is an arithmetic number, because the mean of its divisors is an integer number (6641166).

Almost surely, 2^42286556 is an apocalyptic number.

It is an amenable number.

42286556 is a deficient number, since it is larger than the sum of its proper divisors (37407436).

42286556 is a wasteful number, since it uses less digits than its factorization.

42286556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813220 (or 813218 counting only the distinct ones).

The product of its digits is 115200, while the sum is 38.

The square root of 42286556 is about 6502.8113920058. The cubic root of 42286556 is about 348.3914101303.

The spelling of 42286556 in words is "forty-two million, two hundred eighty-six thousand, five hundred fifty-six".