1478726645 has 16 divisors (see below), whose sum is σ = 1988108928. Its totient is φ = 1046370240.

The previous prime is 1478726597. The next prime is 1478726647. The reversal of 1478726645 is 5466278741.

It is not a de Polignac number, because 1478726645 - 2⁶ = 1478726581 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1478726593 and 1478726602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1478726647) 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, 361289 + ... + 365358.

It is an arithmetic number, because the mean of its divisors is an integer number (124256808).

Almost surely, 2^1478726645 is an apocalyptic number.

It is an amenable number.

1478726645 is a deficient number, since it is larger than the sum of its proper divisors (509382283).

1478726645 is a wasteful number, since it uses less digits than its factorization.

1478726645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726700.

The product of its digits is 2257920, while the sum is 50.

The square root of 1478726645 is about 38454.2149185236. The cubic root of 1478726645 is about 1139.2769203989.

The spelling of 1478726645 in words is "one billion, four hundred seventy-eight million, seven hundred twenty-six thousand, six hundred forty-five".