1491424548 has 12 divisors (see below), whose sum is σ = 3479990640. Its totient is φ = 497141512.

The previous prime is 1491424541. The next prime is 1491424549. The reversal of 1491424548 is 8454241941.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1491424541) 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, 62142678 + ... + 62142701.

It is an arithmetic number, because the mean of its divisors is an integer number (289999220).

Almost surely, 2^1491424548 is an apocalyptic number.

It is an amenable number.

1491424548 is an abundant number, since it is smaller than the sum of its proper divisors (1988566092).

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

1491424548 is a wasteful number, since it uses less digits than its factorization.

1491424548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124285386 (or 124285384 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The square root of 1491424548 is about 38618.9661694872. The cubic root of 1491424548 is about 1142.5286406768.

The spelling of 1491424548 in words is "one billion, four hundred ninety-one million, four hundred twenty-four thousand, five hundred forty-eight".