42580386 has 24 divisors (see below), whose sum is σ = 94509324. Its totient is φ = 13847040.

The previous prime is 42580367. The next prime is 42580397. The reversal of 42580386 is 68308524.

42580386 is a `hidden beast` number, since 42 + 580 + 38 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 42575625 + 4761 = 6525^2 + 69^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42580386.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28111 + ... + 29586.

Almost surely, 2^42580386 is an apocalyptic number.

42580386 is an abundant number, since it is smaller than the sum of its proper divisors (51928938).

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

42580386 is a wasteful number, since it uses less digits than its factorization.

42580386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57746 (or 57743 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 42580386 is about 6525.3648173876. The cubic root of 42580386 is about 349.1964859926.

The spelling of 42580386 in words is "forty-two million, five hundred eighty thousand, three hundred eighty-six".