1493540 has 24 divisors (see below), whose sum is σ = 3197880. Its totient is φ = 585728.

The previous prime is 1493539. The next prime is 1493563. The reversal of 1493540 is 453941.

It can be written as a sum of positive squares in 4 ways, for example, as 14884 + 1478656 = 122^2 + 1216^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356 + ... + 1764.

It is an arithmetic number, because the mean of its divisors is an integer number (133245).

2^1493540 is an apocalyptic number.

1493540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1493540 is an abundant number, since it is smaller than the sum of its proper divisors (1704340).

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

1493540 is a wasteful number, since it uses less digits than its factorization.

1493540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471 (or 1469 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1493540 is about 1222.1047418286. The cubic root of 1493540 is about 114.3068576953.

The spelling of 1493540 in words is "one million, four hundred ninety-three thousand, five hundred forty".