40216325 has 6 divisors (see below), whose sum is σ = 49868274. Its totient is φ = 32173040.

The previous prime is 40216321. The next prime is 40216327. The reversal of 40216325 is 52361204.

It can be written as a sum of positive squares in 3 ways, for example, as 12737761 + 27478564 = 3569^2 + 5242^2 .

It is not a de Polignac number, because 40216325 - 2² = 40216321 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 7.

It is a zygodrome in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 40216325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40216321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 804302 + ... + 804351.

It is an arithmetic number, because the mean of its divisors is an integer number (8311379).

Almost surely, 2^40216325 is an apocalyptic number.

It is an amenable number.

40216325 is a deficient number, since it is larger than the sum of its proper divisors (9651949).

40216325 is a wasteful number, since it uses less digits than its factorization.

40216325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608663 (or 1608658 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 40216325 is about 6341.6342530928. The cubic root of 40216325 is about 342.6105988390.

Adding to 40216325 its reverse (52361204), we get a palindrome (92577529).

The spelling of 40216325 in words is "forty million, two hundred sixteen thousand, three hundred twenty-five".