49278404 has 12 divisors (see below), whose sum is σ = 98556864. Its totient is φ = 21119304.

The previous prime is 49278403. The next prime is 49278409. The reversal of 49278404 is 40487294.

49278404 is an admirable number.

It is a super-2 number, since 2×49278404² = 4856722201574432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49278403) 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 3 ways as a sum of consecutive naturals, for example, 879944 + ... + 879999.

It is an arithmetic number, because the mean of its divisors is an integer number (8213072).

Almost surely, 2^49278404 is an apocalyptic number.

It is an amenable number.

49278404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

49278404 is a wasteful number, since it uses less digits than its factorization.

49278404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759954 (or 1759952 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 49278404 is about 7019.8578333183. The cubic root of 49278404 is about 366.6223002334.

It can be divided in two parts, 4927 and 8404, that added together give a palindrome (13331).

The spelling of 49278404 in words is "forty-nine million, two hundred seventy-eight thousand, four hundred four".