40821395 has 8 divisors (see below), whose sum is σ = 49910256. Its totient is φ = 32040736.

The previous prime is 40821359. The next prime is 40821401. The reversal of 40821395 is 59312804.

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 40821395 - 2¹⁸ = 40559251 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76757 + ... + 77286.

It is an arithmetic number, because the mean of its divisors is an integer number (6238782).

Almost surely, 2^40821395 is an apocalyptic number.

40821395 is a deficient number, since it is larger than the sum of its proper divisors (9088861).

40821395 is a wasteful number, since it uses less digits than its factorization.

40821395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154101.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 40821395 is about 6389.1623081590. The cubic root of 40821395 is about 344.3202888371.

The spelling of 40821395 in words is "forty million, eight hundred twenty-one thousand, three hundred ninety-five".