40220395 has 4 divisors (see below), whose sum is σ = 48264480. Its totient is φ = 32176312.

The previous prime is 40220393. The next prime is 40220407. The reversal of 40220395 is 59302204.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40220395 - 2¹ = 40220393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40220393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4022035 + ... + 4022044.

It is an arithmetic number, because the mean of its divisors is an integer number (12066120).

Almost surely, 2^40220395 is an apocalyptic number.

40220395 is a deficient number, since it is larger than the sum of its proper divisors (8044085).

40220395 is an equidigital number, since it uses as much as digits as its factorization.

40220395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8044084.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 40220395 is about 6341.9551401756. The cubic root of 40220395 is about 342.6221561531.

Adding to 40220395 its reverse (59302204), we get a palindrome (99522599).

The spelling of 40220395 in words is "forty million, two hundred twenty thousand, three hundred ninety-five".