49310381 has 4 divisors (see below), whose sum is σ = 50643132. Its totient is φ = 47977632.

The previous prime is 49310369. The next prime is 49310399. The reversal of 49310381 is 18301394.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25593481 + 23716900 = 5059^2 + 4870^2 .

It is a cyclic number.

It is not a de Polignac number, because 49310381 - 2¹⁰ = 49309357 is a prime.

It is a super-2 number, since 2×49310381² = 4863027348730322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49310311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666320 + ... + 666393.

It is an arithmetic number, because the mean of its divisors is an integer number (12660783).

Almost surely, 2^49310381 is an apocalyptic number.

It is an amenable number.

49310381 is a deficient number, since it is larger than the sum of its proper divisors (1332751).

49310381 is a wasteful number, since it uses less digits than its factorization.

49310381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332750.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 49310381 is about 7022.1350741779. The cubic root of 49310381 is about 366.7015840944.

The spelling of 49310381 in words is "forty-nine million, three hundred ten thousand, three hundred eighty-one".