1493503020 has 72 divisors (see below), whose sum is σ = 4626707904. Its totient is φ = 389791488.

The previous prime is 1493503019. The next prime is 1493503021. The reversal of 1493503020 is 203053941.

1493503020 is a `hidden beast` number, since 1 + 4 + 9 + 350 + 302 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1493503019) and next prime (1493503021).

It is not an unprimeable number, because it can be changed into a prime (1493503021) 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 23 ways as a sum of consecutive naturals, for example, 79809 + ... + 96728.

It is an arithmetic number, because the mean of its divisors is an integer number (64259832).

Almost surely, 2^1493503020 is an apocalyptic number.

1493503020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1493503020 is an abundant number, since it is smaller than the sum of its proper divisors (3133204884).

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

1493503020 is a wasteful number, since it uses less digits than its factorization.

1493503020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176599 (or 176594 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 1493503020 is about 38645.8667906414. The cubic root of 1493503020 is about 1143.0591427617.

Adding to 1493503020 its reverse (203053941), we get a palindrome (1696556961).

The spelling of 1493503020 in words is "one billion, four hundred ninety-three million, five hundred three thousand, twenty".