978271418 has 8 divisors (see below), whose sum is σ = 1468069812. Its totient is φ = 488914816.

The previous prime is 978271381. The next prime is 978271421. The reversal of 978271418 is 814172879.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 946608289 + 31663129 = 30767^2 + 5627^2 .

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, 104855 + ... + 113802.

Almost surely, 2^978271418 is an apocalyptic number.

978271418 is a deficient number, since it is larger than the sum of its proper divisors (489798394).

978271418 is a wasteful number, since it uses less digits than its factorization.

978271418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220896.

The product of its digits is 225792, while the sum is 47.

The square root of 978271418 is about 31277.3307364935. The cubic root of 978271418 is about 992.7040377251.

The spelling of 978271418 in words is "nine hundred seventy-eight million, two hundred seventy-one thousand, four hundred eighteen".