40025221 has 8 divisors (see below), whose sum is σ = 41872320. Its totient is φ = 38187072.

The previous prime is 40025203. The next prime is 40025239. The reversal of 40025221 is 12252004.

It is an interprime number because it is at equal distance from previous prime (40025203) and next prime (40025239).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40025221 - 2¹¹ = 40023173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40025195 and 40025204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40025201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7950 + ... + 11968.

It is an arithmetic number, because the mean of its divisors is an integer number (5234040).

Almost surely, 2^40025221 is an apocalyptic number.

It is an amenable number.

40025221 is a deficient number, since it is larger than the sum of its proper divisors (1847099).

40025221 is a wasteful number, since it uses less digits than its factorization.

40025221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4475.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 40025221 is about 6326.5489012573. The cubic root of 40025221 is about 342.0670530724.

Adding to 40025221 its reverse (12252004), we get a palindrome (52277225).

The spelling of 40025221 in words is "forty million, twenty-five thousand, two hundred twenty-one".