40380605 has 8 divisors (see below), whose sum is σ = 51007200. Its totient is φ = 30604176.

The previous prime is 40380601. The next prime is 40380649. The reversal of 40380605 is 50608304.

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 40380605 - 2² = 40380601 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40380601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212435 + ... + 212624.

It is an arithmetic number, because the mean of its divisors is an integer number (6375900).

Almost surely, 2^40380605 is an apocalyptic number.

It is an amenable number.

40380605 is a deficient number, since it is larger than the sum of its proper divisors (10626595).

40380605 is a wasteful number, since it uses less digits than its factorization.

40380605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425083.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 40380605 is about 6354.5735498143. The cubic root of 40380605 is about 343.0764760187.

Adding to 40380605 its reverse (50608304), we get a palindrome (90988909).

The spelling of 40380605 in words is "forty million, three hundred eighty thousand, six hundred five".