1478440655 has 16 divisors (see below), whose sum is σ = 1798225920. Its totient is φ = 1166794272.

The previous prime is 1478440651. The next prime is 1478440661. The reversal of 1478440655 is 5560448741.

It is a cyclic number.

It is not a de Polignac number, because 1478440655 - 2² = 1478440651 is a prime.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107162 + ... + 120168.

It is an arithmetic number, because the mean of its divisors is an integer number (112389120).

Almost surely, 2^1478440655 is an apocalyptic number.

1478440655 is a deficient number, since it is larger than the sum of its proper divisors (319785265).

1478440655 is a wasteful number, since it uses less digits than its factorization.

1478440655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13318.

The product of its (nonzero) digits is 537600, while the sum is 44.

The square root of 1478440655 is about 38450.4961606479. The cubic root of 1478440655 is about 1139.2034691822.

The spelling of 1478440655 in words is "one billion, four hundred seventy-eight million, four hundred forty thousand, six hundred fifty-five".