1491745260 has 24 divisors (see below), whose sum is σ = 4176886896. Its totient is φ = 397798720.

The previous prime is 1491745253. The next prime is 1491745279. The reversal of 1491745260 is 625471941.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12431151 + ... + 12431270.

It is an arithmetic number, because the mean of its divisors is an integer number (174036954).

Almost surely, 2^1491745260 is an apocalyptic number.

1491745260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1491745260 is an abundant number, since it is smaller than the sum of its proper divisors (2685141636).

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

1491745260 is a wasteful number, since it uses less digits than its factorization.

1491745260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24862433 (or 24862431 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 1491745260 is about 38623.1182065871. The cubic root of 1491745260 is about 1142.6105302555.

The spelling of 1491745260 in words is "one billion, four hundred ninety-one million, seven hundred forty-five thousand, two hundred sixty".