40521395 has 8 divisors (see below), whose sum is σ = 51185040. Its totient is φ = 30710880.

The previous prime is 40521373. The next prime is 40521413. The reversal of 40521395 is 59312504.

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

It is not a de Polignac number, because 40521395 - 2¹² = 40517299 is a prime.

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, 213176 + ... + 213365.

It is an arithmetic number, because the mean of its divisors is an integer number (6398130).

Almost surely, 2^40521395 is an apocalyptic number.

40521395 is a deficient number, since it is larger than the sum of its proper divisors (10663645).

40521395 is a wasteful number, since it uses less digits than its factorization.

40521395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426565.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 40521395 is about 6365.6417586917. The cubic root of 40521395 is about 343.4747341236.

Adding to 40521395 its reverse (59312504), we get a palindrome (99833899).

The spelling of 40521395 in words is "forty million, five hundred twenty-one thousand, three hundred ninety-five".