49720986 has 192 divisors, whose sum is σ = 144460800. Its totient is φ = 12573792.

The previous prime is 49720981. The next prime is 49721033. The reversal of 49720986 is 68902794.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49720981) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1156281 + ... + 1156323.

It is an arithmetic number, because the mean of its divisors is an integer number (752400).

Almost surely, 2^49720986 is an apocalyptic number.

49720986 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 49720986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72230400).

49720986 is an abundant number, since it is smaller than the sum of its proper divisors (94739814).

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

49720986 is a wasteful number, since it uses less digits than its factorization.

49720986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 49720986 is about 7051.3109419455. The cubic root of 49720986 is about 367.7166069992.

The spelling of 49720986 in words is "forty-nine million, seven hundred twenty thousand, nine hundred eighty-six".