49147790 has 16 divisors (see below), whose sum is σ = 88548768. Its totient is φ = 19640736.

The previous prime is 49147739. The next prime is 49147793. The reversal of 49147790 is 9774194.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49147793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15479 + ... + 18381.

It is an arithmetic number, because the mean of its divisors is an integer number (5534298).

Almost surely, 2^49147790 is an apocalyptic number.

49147790 is a deficient number, since it is larger than the sum of its proper divisors (39400978).

49147790 is a wasteful number, since it uses less digits than its factorization.

49147790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4603.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 49147790 is about 7010.5484806825. The cubic root of 49147790 is about 366.2980988832.

Adding to 49147790 its product of nonzero digits (63504), we get a palindrome (49211294).

The spelling of 49147790 in words is "forty-nine million, one hundred forty-seven thousand, seven hundred ninety".