40852578 has 32 divisors (see below), whose sum is σ = 88655616. Its totient is φ = 12475008.

The previous prime is 40852573. The next prime is 40852583. The reversal of 40852578 is 87525804.

It is an interprime number because it is at equal distance from previous prime (40852573) and next prime (40852583).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40852573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8775 + ... + 12597.

It is an arithmetic number, because the mean of its divisors is an integer number (2770488).

Almost surely, 2^40852578 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40852578, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44327808).

40852578 is an abundant number, since it is smaller than the sum of its proper divisors (47803038).

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

40852578 is a wasteful number, since it uses less digits than its factorization.

40852578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3978.

The product of its (nonzero) digits is 89600, while the sum is 39.

The square root of 40852578 is about 6391.6021465670. The cubic root of 40852578 is about 344.4079406415.

The spelling of 40852578 in words is "forty million, eight hundred fifty-two thousand, five hundred seventy-eight".