42592578 has 32 divisors (see below), whose sum is σ = 97566336. Its totient is φ = 12142848.

The previous prime is 42592577. The next prime is 42592601. The reversal of 42592578 is 87529524.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42592577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26650 + ... + 28202.

It is an arithmetic number, because the mean of its divisors is an integer number (3048948).

Almost surely, 2^42592578 is an apocalyptic number.

42592578 is an abundant number, since it is smaller than the sum of its proper divisors (54973758).

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

42592578 is a wasteful number, since it uses less digits than its factorization.

42592578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2218.

The product of its digits is 201600, while the sum is 42.

The square root of 42592578 is about 6526.2989511667. The cubic root of 42592578 is about 349.2298111741.

The spelling of 42592578 in words is "forty-two million, five hundred ninety-two thousand, five hundred seventy-eight".