49681278 has 24 divisors (see below), whose sum is σ = 108134208. Its totient is φ = 16484832.

The previous prime is 49681273. The next prime is 49681301. The reversal of 49681278 is 87218694.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49681273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2175 + ... + 10202.

It is an arithmetic number, because the mean of its divisors is an integer number (4505592).

Almost surely, 2^49681278 is an apocalyptic number.

49681278 is an abundant number, since it is smaller than the sum of its proper divisors (58452930).

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

49681278 is a wasteful number, since it uses less digits than its factorization.

49681278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12608 (or 12605 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 49681278 is about 7048.4947329199. The cubic root of 49681278 is about 367.6186927455.

The spelling of 49681278 in words is "forty-nine million, six hundred eighty-one thousand, two hundred seventy-eight".