1493358736 has 15 divisors (see below), whose sum is σ = 2893682073. Its totient is φ = 746602080.

The previous prime is 1493358731. The next prime is 1493358791. The reversal of 1493358736 is 6378533941.

The square root of 1493358736 is 38644.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 309136 + 1493049600 = 556^2 + 38640^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1493358736.

It is not an unprimeable number, because it can be changed into a prime (1493358731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 149746 + ... + 159406.

Almost surely, 2^1493358736 is an apocalyptic number.

1493358736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1493358736 is the 38644-th square number.

It is an amenable number.

1493358736 is a deficient number, since it is larger than the sum of its proper divisors (1400323337).

1493358736 is an frugal number, since it uses more digits than its factorization.

1493358736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19330 (or 9663 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 49.

The cubic root of 1493358736 is about 1143.0223321104.

Multiplying 1493358736 by its sum of digits (49), we get a square (73174578064 = 270508²).

The spelling of 1493358736 in words is "one billion, four hundred ninety-three million, three hundred fifty-eight thousand, seven hundred thirty-six".