42256536 has 32 divisors (see below), whose sum is σ = 120733440. Its totient is φ = 12073248.

The previous prime is 42256531. The next prime is 42256541. The reversal of 42256536 is 63565224.

It is an interprime number because it is at equal distance from previous prime (42256531) and next prime (42256541).

It is a super-2 number, since 2×42256536² = 3571229669438592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42256497 and 42256506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42256531) 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, 125596 + ... + 125931.

It is an arithmetic number, because the mean of its divisors is an integer number (3772920).

Almost surely, 2^42256536 is an apocalyptic number.

It is an amenable number.

42256536 is an abundant number, since it is smaller than the sum of its proper divisors (78476904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42256536 is a wasteful number, since it uses less digits than its factorization.

42256536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251543 (or 251539 counting only the distinct ones).

The product of its digits is 43200, while the sum is 33.

The square root of 42256536 is about 6500.5027497879. The cubic root of 42256536 is about 348.3089474673.

The spelling of 42256536 in words is "forty-two million, two hundred fifty-six thousand, five hundred thirty-six".