1478189674 has 8 divisors (see below), whose sum is σ = 2387844900. Its totient is φ = 682241376.

The previous prime is 1478189651. The next prime is 1478189707. The reversal of 1478189674 is 4769818741.

It can be written as a sum of positive squares in 2 ways, for example, as 1424534049 + 53655625 = 37743^2 + 7325^2 .

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

It is an alternating number because its digits alternate between odd and even.

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, 28426699 + ... + 28426750.

Almost surely, 2^1478189674 is an apocalyptic number.

1478189674 is a deficient number, since it is larger than the sum of its proper divisors (909655226).

1478189674 is a wasteful number, since it uses less digits than its factorization.

1478189674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56853464.

The product of its digits is 2709504, while the sum is 55.

The square root of 1478189674 is about 38447.2323321198. The cubic root of 1478189674 is about 1139.1390015722.

The spelling of 1478189674 in words is "one billion, four hundred seventy-eight million, one hundred eighty-nine thousand, six hundred seventy-four".