1491705366 has 16 divisors (see below), whose sum is σ = 2984694384. Its totient is φ = 497021184.

The previous prime is 1491705361. The next prime is 1491705379. The reversal of 1491705366 is 6635071941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1491705361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38035 + ... + 66558.

It is an arithmetic number, because the mean of its divisors is an integer number (186543399).

Almost surely, 2^1491705366 is an apocalyptic number.

1491705366 is an abundant number, since it is smaller than the sum of its proper divisors (1492989018).

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

1491705366 is a wasteful number, since it uses less digits than its factorization.

1491705366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106975.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 1491705366 is about 38622.6017507884. The cubic root of 1491705366 is about 1142.6003444881.

The spelling of 1491705366 in words is "one billion, four hundred ninety-one million, seven hundred five thousand, three hundred sixty-six".