49181489 has 12 divisors (see below), whose sum is σ = 56910144. Its totient is φ = 41634912.

The previous prime is 49181479. The next prime is 49181491. The reversal of 49181489 is 98418194.

It is not a de Polignac number, because 49181489 - 2⁸ = 49181233 is a prime.

It is a super-3 number, since 3×49181489³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49181479) 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, 55004 + ... + 55890.

It is an arithmetic number, because the mean of its divisors is an integer number (4742512).

Almost surely, 2^49181489 is an apocalyptic number.

It is an amenable number.

49181489 is a deficient number, since it is larger than the sum of its proper divisors (7728655).

49181489 is an frugal number, since it uses more digits than its factorization.

49181489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072 (or 983 counting only the distinct ones).

The product of its digits is 82944, while the sum is 44.

The square root of 49181489 is about 7012.9515184407. The cubic root of 49181489 is about 366.3817992181.

The spelling of 49181489 in words is "forty-nine million, one hundred eighty-one thousand, four hundred eighty-nine".