49381605 has 96 divisors (see below), whose sum is σ = 109025280. Its totient is φ = 20113920.

The previous prime is 49381573. The next prime is 49381609. The reversal of 49381605 is 50618394.

49381605 is a `hidden beast` number, since 49 + 3 + 8 + 1 + 605 = 666.

It is not a de Polignac number, because 49381605 - 2⁵ = 49381573 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49381605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49381609) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 126751 + ... + 127139.

It is an arithmetic number, because the mean of its divisors is an integer number (1135680).

Almost surely, 2^49381605 is an apocalyptic number.

49381605 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49381605 is an abundant number, since it is smaller than the sum of its proper divisors (59643675).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49381605 is a wasteful number, since it uses less digits than its factorization.

49381605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451 (or 448 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 49381605 is about 7027.2046362690. The cubic root of 49381605 is about 366.8780539589.

Adding to 49381605 its reverse (50618394), we get a palindrome (99999999).

The spelling of 49381605 in words is "forty-nine million, three hundred eighty-one thousand, six hundred five".