47919102 has 128 divisors (see below), whose sum is σ = 129392640. Its totient is φ = 11456640.

The previous prime is 47919077. The next prime is 47919103. The reversal of 47919102 is 20191974.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47919103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 465183 + ... + 465285.

It is an arithmetic number, because the mean of its divisors is an integer number (1010880).

Almost surely, 2^47919102 is an apocalyptic number.

47919102 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 47919102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64696320).

47919102 is an abundant number, since it is smaller than the sum of its proper divisors (81473538).

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

47919102 is a wasteful number, since it uses less digits than its factorization.

47919102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 47919102 is about 6922.3624580052. The cubic root of 47919102 is about 363.2198351174.

The spelling of 47919102 in words is "forty-seven million, nine hundred nineteen thousand, one hundred two".