49489960 has 48 divisors (see below), whose sum is σ = 120593340. Its totient is φ = 18270720.

The previous prime is 49489943. The next prime is 49489991. The reversal of 49489960 is 6998494.

It can be written as a sum of positive squares in 6 ways, for example, as 181476 + 49308484 = 426^2 + 7022^2 .

It is a super-2 number, since 2×49489960² = 4898512281603200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3100 + ... + 10420.

Almost surely, 2^49489960 is an apocalyptic number.

49489960 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49489960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60296670).

49489960 is an abundant number, since it is smaller than the sum of its proper divisors (71103380).

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

49489960 is a wasteful number, since it uses less digits than its factorization.

49489960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7358 (or 7341 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 49489960 is about 7034.9100918206. The cubic root of 49489960 is about 367.1461972013.

The spelling of 49489960 in words is "forty-nine million, four hundred eighty-nine thousand, nine hundred sixty".