1493893305 has 48 divisors (see below), whose sum is σ = 2636172864. Its totient is φ = 782432640.

The previous prime is 1493893301. The next prime is 1493893307. The reversal of 1493893305 is 5033983941.

It is not a de Polignac number, because 1493893305 - 2² = 1493893301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1493893301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1407475 + ... + 1408535.

It is an arithmetic number, because the mean of its divisors is an integer number (54920268).

Almost surely, 2^1493893305 is an apocalyptic number.

1493893305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1493893305 is a deficient number, since it is larger than the sum of its proper divisors (1142279559).

1493893305 is a wasteful number, since it uses less digits than its factorization.

1493893305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606 (or 1603 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 1493893305 is about 38650.9159658604. The cubic root of 1493893305 is about 1143.1587028735.

The spelling of 1493893305 in words is "one billion, four hundred ninety-three million, eight hundred ninety-three thousand, three hundred five".