42579000 has 256 divisors, whose sum is σ = 157248000. Its totient is φ = 10627200.

The previous prime is 42578993. The next prime is 42579001. The reversal of 42579000 is 97524.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42579001) 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 63 ways as a sum of consecutive naturals, for example, 512959 + ... + 513041.

It is an arithmetic number, because the mean of its divisors is an integer number (614250).

Almost surely, 2^42579000 is an apocalyptic number.

42579000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42579000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78624000).

42579000 is an abundant number, since it is smaller than the sum of its proper divisors (114669000).

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

42579000 is a wasteful number, since it uses less digits than its factorization.

42579000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 42579000 is about 6525.2586155646. The cubic root of 42579000 is about 349.1926971466.

The spelling of 42579000 in words is "forty-two million, five hundred seventy-nine thousand".