49161420 has 144 divisors (see below), whose sum is σ = 185971968. Its totient is φ = 10212480.

The previous prime is 49161403. The next prime is 49161439. The reversal of 49161420 is 2416194.

49161420 is a `hidden beast` number, since 49 + 1 + 614 + 2 + 0 = 666.

49161420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12087 + ... + 15633.

It is an arithmetic number, because the mean of its divisors is an integer number (1291472).

Almost surely, 2^49161420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49161420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92985984).

49161420 is an abundant number, since it is smaller than the sum of its proper divisors (136810548).

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

49161420 is a wasteful number, since it uses less digits than its factorization.

49161420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3580 (or 3575 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 49161420 is about 7011.5205198302. The cubic root of 49161420 is about 366.3319571817.

It can be divided in two parts, 4916 and 1420, that added together give a palindrome (6336).

The spelling of 49161420 in words is "forty-nine million, one hundred sixty-one thousand, four hundred twenty".