1480391 has 4 divisors (see below), whose sum is σ = 1614984. Its totient is φ = 1345800.

The previous prime is 1480379. The next prime is 1480393. The reversal of 1480391 is 1930841.

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

It is a cyclic number.

It is not a de Polignac number, because 1480391 - 2¹⁸ = 1218247 is a prime.

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 1480391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1480393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67280 + ... + 67301.

It is an arithmetic number, because the mean of its divisors is an integer number (403746).

2^1480391 is an apocalyptic number.

1480391 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1480391 is a deficient number, since it is larger than the sum of its proper divisors (134593).

1480391 is a wasteful number, since it uses less digits than its factorization.

1480391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134592.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1480391 is about 1216.7131954573. The cubic root of 1480391 is about 113.9704191230.

The spelling of 1480391 in words is "one million, four hundred eighty thousand, three hundred ninety-one".