1478894378 has 16 divisors (see below), whose sum is σ = 2419226880. Its totient is φ = 673925616.

The previous prime is 1478894377. The next prime is 1478894383. The reversal of 1478894378 is 8734988741.

It is not an unprimeable number, because it can be changed into a prime (1478894377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357950 + ... + 362057.

It is an arithmetic number, because the mean of its divisors is an integer number (151201680).

Almost surely, 2^1478894378 is an apocalyptic number.

1478894378 is a deficient number, since it is larger than the sum of its proper divisors (940332502).

1478894378 is a wasteful number, since it uses less digits than its factorization.

1478894378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720101.

The product of its digits is 10838016, while the sum is 59.

The square root of 1478894378 is about 38456.3958009588. The cubic root of 1478894378 is about 1139.3199950969.

The spelling of 1478894378 in words is "one billion, four hundred seventy-eight million, eight hundred ninety-four thousand, three hundred seventy-eight".