40201405 has 8 divisors (see below), whose sum is σ = 48380472. Its totient is φ = 32068608.

The previous prime is 40201393. The next prime is 40201423. The reversal of 40201405 is 50410204.

It can be written as a sum of positive squares in 4 ways, for example, as 9498724 + 30702681 = 3082^2 + 5541^2 .

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 40201405 - 2⁵ = 40201373 is a prime.

It is a Duffinian number.

It is a congruent 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, 9624 + ... + 13153.

It is an arithmetic number, because the mean of its divisors is an integer number (6047559).

Almost surely, 2^40201405 is an apocalyptic number.

It is an amenable number.

40201405 is a deficient number, since it is larger than the sum of its proper divisors (8179067).

40201405 is a wasteful number, since it uses less digits than its factorization.

40201405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23135.

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

The square root of 40201405 is about 6340.4577910432. The cubic root of 40201405 is about 342.5682248163.

Adding to 40201405 its reverse (50410204), we get a palindrome (90611609).

The spelling of 40201405 in words is "forty million, two hundred one thousand, four hundred five".