49838490 has 80 divisors (see below), whose sum is σ = 144349128. Its totient is φ = 12265344.

The previous prime is 49838489. The next prime is 49838491. The reversal of 49838490 is 9483894.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (49838489) and next prime (49838491).

It can be written as a sum of positive squares in 4 ways, for example, as 22496049 + 27342441 = 4743^2 + 5229^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (49838491) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8164 + ... + 12896.

Almost surely, 2^49838490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49838490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72174564).

49838490 is an abundant number, since it is smaller than the sum of its proper divisors (94510638).

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

49838490 is a wasteful number, since it uses less digits than its factorization.

49838490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4765 (or 4756 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 49838490 is about 7059.6380927070. The cubic root of 49838490 is about 368.0060500344.

The spelling of 49838490 in words is "forty-nine million, eight hundred thirty-eight thousand, four hundred ninety".