49011102 has 128 divisors (see below), whose sum is σ = 136857600. Its totient is φ = 12676608.

The previous prime is 49011077. The next prime is 49011107. The reversal of 49011102 is 20111094.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49011107) 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 63 ways as a sum of consecutive naturals, for example, 186223 + ... + 186485.

It is an arithmetic number, because the mean of its divisors is an integer number (1069200).

Almost surely, 2^49011102 is an apocalyptic number.

49011102 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 49011102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68428800).

49011102 is an abundant number, since it is smaller than the sum of its proper divisors (87846498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49011102 is a wasteful number, since it uses less digits than its factorization.

49011102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 49011102 is about 7000.7929550873. The cubic root of 49011102 is about 365.9582053861.

Adding to 49011102 its reverse (20111094), we get a palindrome (69122196).

The spelling of 49011102 in words is "forty-nine million, eleven thousand, one hundred two".