49015478 has 8 divisors (see below), whose sum is σ = 77392920. Its totient is φ = 23217840.

The previous prime is 49015469. The next prime is 49015559. The reversal of 49015478 is 87451094.

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

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 1289881 = 49015478 / (4 + 9 + 0 + 1 + 5 + 4 + 7 + 8).

It is a congruent number.

It is an unprimeable number.

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, 644903 + ... + 644978.

It is an arithmetic number, because the mean of its divisors is an integer number (9674115).

Almost surely, 2^49015478 is an apocalyptic number.

49015478 is a deficient number, since it is larger than the sum of its proper divisors (28377442).

49015478 is a wasteful number, since it uses less digits than its factorization.

49015478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289902.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 49015478 is about 7001.1054841361. The cubic root of 49015478 is about 365.9690966970.

The spelling of 49015478 in words is "forty-nine million, fifteen thousand, four hundred seventy-eight".