49040381 has 4 divisors (see below), whose sum is σ = 52812732. Its totient is φ = 45268032.

The previous prime is 49040333. The next prime is 49040417. The reversal of 49040381 is 18304094.

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 12013156 + 37027225 = 3466^2 + 6085^2 .

It is a cyclic number.

It is not a de Polignac number, because 49040381 - 2¹⁰ = 49039357 is a prime.

It is a super-2 number, since 2×49040381² = 4809917937250322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49040681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1886156 + ... + 1886181.

It is an arithmetic number, because the mean of its divisors is an integer number (13203183).

Almost surely, 2^49040381 is an apocalyptic number.

It is an amenable number.

49040381 is a deficient number, since it is larger than the sum of its proper divisors (3772351).

49040381 is a wasteful number, since it uses less digits than its factorization.

49040381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3772350.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 49040381 is about 7002.8837631364. The cubic root of 49040381 is about 366.0310647784.

The spelling of 49040381 in words is "forty-nine million, forty thousand, three hundred eighty-one".