49905120 has 48 divisors (see below), whose sum is σ = 157202640. Its totient is φ = 13307904.

The previous prime is 49905113. The next prime is 49905173. The reversal of 49905120 is 2150994.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51505 + ... + 52464.

It is an arithmetic number, because the mean of its divisors is an integer number (3275055).

Almost surely, 2^49905120 is an apocalyptic number.

49905120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49905120 is an abundant number, since it is smaller than the sum of its proper divisors (107297520).

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

49905120 is a wasteful number, since it uses less digits than its factorization.

49905120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103987 (or 103979 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 49905120 is about 7064.3555969388. The cubic root of 49905120 is about 368.1699750385.

The spelling of 49905120 in words is "forty-nine million, nine hundred five thousand, one hundred twenty".