1480367857 has 4 divisors (see below), whose sum is σ = 1508299380. Its totient is φ = 1452436336.

The previous prime is 1480367813. The next prime is 1480367873. The reversal of 1480367857 is 7587630841.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1134072976 + 346294881 = 33676^2 + 18609^2 .

It is a cyclic number.

It is not a de Polignac number, because 1480367857 - 2¹⁵ = 1480335089 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1480367857.

It is not an unprimeable number, because it can be changed into a prime (1480367887) 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 3 ways as a sum of consecutive naturals, for example, 13965682 + ... + 13965787.

It is an arithmetic number, because the mean of its divisors is an integer number (377074845).

Almost surely, 2^1480367857 is an apocalyptic number.

It is an amenable number.

1480367857 is a deficient number, since it is larger than the sum of its proper divisors (27931523).

1480367857 is an equidigital number, since it uses as much as digits as its factorization.

1480367857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27931522.

The product of its (nonzero) digits is 1128960, while the sum is 49.

The square root of 1480367857 is about 38475.5488199974. The cubic root of 1480367857 is about 1139.6982521880.

The spelling of 1480367857 in words is "one billion, four hundred eighty million, three hundred sixty-seven thousand, eight hundred fifty-seven".