49493778 has 16 divisors (see below), whose sum is σ = 102401280. Its totient is φ = 15928976.

The previous prime is 49493767. The next prime is 49493789. The reversal of 49493778 is 87739494.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (49493767) and next prime (49493789).

It is a self number, because there is not a number n which added to its sum of digits gives 49493778.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142050 + ... + 142397.

It is an arithmetic number, because the mean of its divisors is an integer number (6400080).

Almost surely, 2^49493778 is an apocalyptic number.

49493778 is an abundant number, since it is smaller than the sum of its proper divisors (52907502).

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

49493778 is a wasteful number, since it uses less digits than its factorization.

49493778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284481.

The product of its digits is 1524096, while the sum is 51.

The square root of 49493778 is about 7035.1814475534. The cubic root of 49493778 is about 367.1556383629.

The spelling of 49493778 in words is "forty-nine million, four hundred ninety-three thousand, seven hundred seventy-eight".