1493921 has 16 divisors (see below), whose sum is σ = 1817088. Its totient is φ = 1209600.

The previous prime is 1493903. The next prime is 1493927. The reversal of 1493921 is 1293941.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1493921 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1493927) 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 15 ways as a sum of consecutive naturals, for example, 4265 + ... + 4601.

It is an arithmetic number, because the mean of its divisors is an integer number (113568).

2^1493921 is an apocalyptic number.

1493921 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1493921 is a deficient number, since it is larger than the sum of its proper divisors (323167).

1493921 is a wasteful number, since it uses less digits than its factorization.

1493921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392.

The product of its digits is 1944, while the sum is 29.

The square root of 1493921 is about 1222.2606105082. The cubic root of 1493921 is about 114.3165767096.

The spelling of 1493921 in words is "one million, four hundred ninety-three thousand, nine hundred twenty-one".