40258530 has 96 divisors (see below), whose sum is σ = 118722240. Its totient is φ = 9383040.

The previous prime is 40258529. The next prime is 40258531. The reversal of 40258530 is 3585204.

40258530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40258529) and next prime (40258531).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40258494 and 40258503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40258531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21325 + ... + 23135.

It is an arithmetic number, because the mean of its divisors is an integer number (1236690).

Almost surely, 2^40258530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40258530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59361120).

40258530 is an abundant number, since it is smaller than the sum of its proper divisors (78463710).

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

40258530 is a wasteful number, since it uses less digits than its factorization.

40258530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856 (or 1853 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 40258530 is about 6344.9609927879. The cubic root of 40258530 is about 342.7304077720.

The spelling of 40258530 in words is "forty million, two hundred fifty-eight thousand, five hundred thirty".