1480778221 has 8 divisors (see below), whose sum is σ = 1637784344. Its totient is φ = 1329929280.

The previous prime is 1480778213. The next prime is 1480778237. The reversal of 1480778221 is 1228770841.

It can be written as a sum of positive squares in 4 ways, for example, as 750157321 + 730620900 = 27389^2 + 27030^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1480778221 - 2³ = 1480778213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1480778261) 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, 1538790 + ... + 1539751.

It is an arithmetic number, because the mean of its divisors is an integer number (204723043).

Almost surely, 2^1480778221 is an apocalyptic number.

It is an amenable number.

1480778221 is a deficient number, since it is larger than the sum of its proper divisors (157006123).

1480778221 is a wasteful number, since it uses less digits than its factorization.

1480778221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3078591.

The product of its (nonzero) digits is 50176, while the sum is 40.

The square root of 1480778221 is about 38480.8812399093. The cubic root of 1480778221 is about 1139.8035521247.

The spelling of 1480778221 in words is "one billion, four hundred eighty million, seven hundred seventy-eight thousand, two hundred twenty-one".