49018978 has 8 divisors (see below), whose sum is σ = 73761372. Its totient is φ = 24431856.

The previous prime is 49018951. The next prime is 49018999. The reversal of 49018978 is 87981094.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 47513449 + 1505529 = 6893^2 + 1227^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38025 + ... + 39292.

Almost surely, 2^49018978 is an apocalyptic number.

49018978 is a deficient number, since it is larger than the sum of its proper divisors (24742394).

49018978 is a wasteful number, since it uses less digits than its factorization.

49018978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77636.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 49018978 is about 7001.3554401987. The cubic root of 49018978 is about 365.9778072880.

The spelling of 49018978 in words is "forty-nine million, eighteen thousand, nine hundred seventy-eight".