49428478 has 8 divisors (see below), whose sum is σ = 80883000. Its totient is φ = 22467480.

The previous prime is 49428473. The next prime is 49428529. The reversal of 49428478 is 87482494.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49428473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1123353 + ... + 1123396.

It is an arithmetic number, because the mean of its divisors is an integer number (10110375).

Almost surely, 2^49428478 is an apocalyptic number.

49428478 is a deficient number, since it is larger than the sum of its proper divisors (31454522).

49428478 is a wasteful number, since it uses less digits than its factorization.

49428478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2246762.

The product of its digits is 516096, while the sum is 46.

The square root of 49428478 is about 7030.5389551584. The cubic root of 49428478 is about 366.9940974186.

The spelling of 49428478 in words is "forty-nine million, four hundred twenty-eight thousand, four hundred seventy-eight".