1491376480 has 48 divisors (see below), whose sum is σ = 3843688464. Its totient is φ = 542318080.

The previous prime is 1491376463. The next prime is 1491376499. The reversal of 1491376480 is 846731941.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421927 + ... + 425446.

It is an arithmetic number, because the mean of its divisors is an integer number (80076843).

Almost surely, 2^1491376480 is an apocalyptic number.

1491376480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1491376480 is an abundant number, since it is smaller than the sum of its proper divisors (2352311984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1491376480 is a wasteful number, since it uses less digits than its factorization.

1491376480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847399 (or 847391 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 1491376480 is about 38618.3438277718. The cubic root of 1491376480 is about 1142.5163661355.

The spelling of 1491376480 in words is "one billion, four hundred ninety-one million, three hundred seventy-six thousand, four hundred eighty".