49322781 has 12 divisors (see below), whose sum is σ = 72146880. Its totient is φ = 32465160.

The previous prime is 49322773. The next prime is 49322783. The reversal of 49322781 is 18722394.

It is not a de Polignac number, because 49322781 - 2³ = 49322773 is a prime.

It is a super-2 number, since 2×49322781² = 4865473451147922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49322783) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33975 + ... + 35396.

It is an arithmetic number, because the mean of its divisors is an integer number (6012240).

Almost surely, 2^49322781 is an apocalyptic number.

It is an amenable number.

49322781 is a deficient number, since it is larger than the sum of its proper divisors (22824099).

49322781 is a wasteful number, since it uses less digits than its factorization.

49322781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69456 (or 69453 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 49322781 is about 7023.0179410279. The cubic root of 49322781 is about 366.7323194653.

The spelling of 49322781 in words is "forty-nine million, three hundred twenty-two thousand, seven hundred eighty-one".