49209790 has 32 divisors (see below), whose sum is σ = 101686464. Its totient is φ = 16796160.

The previous prime is 49209779. The next prime is 49209793. The reversal of 49209790 is 9790294.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49209793) 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 15 ways as a sum of consecutive naturals, for example, 15412 + ... + 18328.

It is an arithmetic number, because the mean of its divisors is an integer number (3177702).

Almost surely, 2^49209790 is an apocalyptic number.

49209790 is an abundant number, since it is smaller than the sum of its proper divisors (52476674).

49209790 is a wasteful number, since it uses less digits than its factorization.

49209790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3172.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 49209790 is about 7014.9689949422. The cubic root of 49209790 is about 366.4520626664.

The spelling of 49209790 in words is "forty-nine million, two hundred nine thousand, seven hundred ninety".