1493247420 has 96 divisors (see below), whose sum is σ = 5309337600. Its totient is φ = 341312832.

The previous prime is 1493247407. The next prime is 1493247421. The reversal of 1493247420 is 247423941.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1493247421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 193740 + ... + 201299.

It is an arithmetic number, because the mean of its divisors is an integer number (55305600).

Almost surely, 2^1493247420 is an apocalyptic number.

1493247420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1493247420 is an abundant number, since it is smaller than the sum of its proper divisors (3816090180).

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

1493247420 is a wasteful number, since it uses less digits than its factorization.

1493247420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395064 (or 395056 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 1493247420 is about 38642.5596978254. The cubic root of 1493247420 is about 1142.9939308445.

The spelling of 1493247420 in words is "one billion, four hundred ninety-three million, two hundred forty-seven thousand, four hundred twenty".