1478440654 has 32 divisors (see below), whose sum is σ = 2438876160. Its totient is φ = 669513600.

The previous prime is 1478440651. The next prime is 1478440661. The reversal of 1478440654 is 4560448741.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1478440654.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1478440651) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 90214 + ... + 105334.

It is an arithmetic number, because the mean of its divisors is an integer number (76214880).

Almost surely, 2^1478440654 is an apocalyptic number.

1478440654 is a deficient number, since it is larger than the sum of its proper divisors (960435506).

1478440654 is a wasteful number, since it uses less digits than its factorization.

1478440654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15256.

The product of its (nonzero) digits is 430080, while the sum is 43.

The square root of 1478440654 is about 38450.4961476442. The cubic root of 1478440654 is about 1139.2034689254.

The spelling of 1478440654 in words is "one billion, four hundred seventy-eight million, four hundred forty thousand, six hundred fifty-four".