1493821280 has 192 divisors, whose sum is σ = 4338012672. Its totient is φ = 474439680.

The previous prime is 1493821267. The next prime is 1493821289. The reversal of 1493821280 is 821283941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1493821289) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1275095 + ... + 1276265.

It is an arithmetic number, because the mean of its divisors is an integer number (22593816).

Almost surely, 2^1493821280 is an apocalyptic number.

1493821280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1493821280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2169006336).

1493821280 is an abundant number, since it is smaller than the sum of its proper divisors (2844191392).

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

1493821280 is a wasteful number, since it uses less digits than its factorization.

1493821280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277 (or 1269 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 1493821280 is about 38649.9842173318. The cubic root of 1493821280 is about 1143.1403308946.

The spelling of 1493821280 in words is "one billion, four hundred ninety-three million, eight hundred twenty-one thousand, two hundred eighty".