49790538 has 120 divisors (see below), whose sum is σ = 134896608. Its totient is φ = 13443408.

The previous prime is 49790537. The next prime is 49790539. The reversal of 49790538 is 83509794.

49790538 is a `hidden beast` number, since 49 + 79 + 0 + 538 = 666.

It is an interprime number because it is at equal distance from previous prime (49790537) and next prime (49790539).

It is a junction number, because it is equal to n+sod(n) for n = 49790493 and 49790502.

It is not an unprimeable number, because it can be changed into a prime (49790537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 599845 + ... + 599927.

Almost surely, 2^49790538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49790538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67448304).

49790538 is an abundant number, since it is smaller than the sum of its proper divisors (85106070).

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

49790538 is a wasteful number, since it uses less digits than its factorization.

49790538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 49790538 is about 7056.2410673106. The cubic root of 49790538 is about 367.8879867418.

The spelling of 49790538 in words is "forty-nine million, seven hundred ninety thousand, five hundred thirty-eight".