1493064738 has 120 divisors (see below), whose sum is σ = 3742588080. Its totient is φ = 444430800.

The previous prime is 1493064709. The next prime is 1493064743. The reversal of 1493064738 is 8374603941.

1493064738 is a `hidden beast` number, since 149 + 30 + 6 + 473 + 8 = 666.

1493064738 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1493064693 and 1493064702.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1155873 + ... + 1157163.

It is an arithmetic number, because the mean of its divisors is an integer number (31188234).

Almost surely, 2^1493064738 is an apocalyptic number.

1493064738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1493064738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1871294040).

1493064738 is an abundant number, since it is smaller than the sum of its proper divisors (2249523342).

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

1493064738 is a wasteful number, since it uses less digits than its factorization.

1493064738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386 (or 1366 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 1493064738 is about 38640.1958845967. The cubic root of 1493064738 is about 1142.9473181332.

The spelling of 1493064738 in words is "one billion, four hundred ninety-three million, sixty-four thousand, seven hundred thirty-eight".