40225864 has 48 divisors (see below), whose sum is σ = 88800300. Its totient is φ = 17031168.

The previous prime is 40225849. The next prime is 40225891. The reversal of 40225864 is 46852204.

It can be written as a sum of positive squares in 2 ways, for example, as 40220964 + 4900 = 6342^2 + 70^2 .

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 34312 + ... + 35464.

Almost surely, 2^40225864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40225864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44400150).

40225864 is an abundant number, since it is smaller than the sum of its proper divisors (48574436).

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

40225864 is a wasteful number, since it uses less digits than its factorization.

40225864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262 (or 1251 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 40225864 is about 6342.3863017006. The cubic root of 40225864 is about 342.6376848887.

The spelling of 40225864 in words is "forty million, two hundred twenty-five thousand, eight hundred sixty-four".