1491466500 has 96 divisors (see below), whose sum is σ = 4825766400. Its totient is φ = 397720800.

The previous prime is 1491466489. The next prime is 1491466573. The reversal of 1491466500 is 56641941.

1491466500 is a `hidden beast` number, since 1 + 4 + 9 + 146 + 6 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41740 + ... + 68739.

It is an arithmetic number, because the mean of its divisors is an integer number (50268400).

Almost surely, 2^1491466500 is an apocalyptic number.

1491466500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1491466500 is an abundant number, since it is smaller than the sum of its proper divisors (3334299900).

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

1491466500 is a wasteful number, since it uses less digits than its factorization.

1491466500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110507 (or 110489 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 1491466500 is about 38619.5093184779. The cubic root of 1491466500 is about 1142.5393532340.

The spelling of 1491466500 in words is "one billion, four hundred ninety-one million, four hundred sixty-six thousand, five hundred".