49018081 has 24 divisors (see below), whose sum is σ = 61687680. Its totient is φ = 38701152.

The previous prime is 49018051. The next prime is 49018093. The reversal of 49018081 is 18081094.

It is not a de Polignac number, because 49018081 - 2¹⁷ = 48887009 is a prime.

It is a super-3 number, since 3×49018081³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

49018081 is a modest number, since divided by 18081 gives 490 as remainder.

It is a zygodrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (49018031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33736 + ... + 35158.

It is an arithmetic number, because the mean of its divisors is an integer number (2570320).

Almost surely, 2^49018081 is an apocalyptic number.

It is an amenable number.

49018081 is a deficient number, since it is larger than the sum of its proper divisors (12669599).

49018081 is a wasteful number, since it uses less digits than its factorization.

49018081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493 (or 1486 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 49018081 is about 7001.2913808811. The cubic root of 49018081 is about 365.9755749275.

The spelling of 49018081 in words is "forty-nine million, eighteen thousand, eighty-one".