1493644 has 12 divisors (see below), whose sum is σ = 2658600. Its totient is φ = 734048.

The previous prime is 1493641. The next prime is 1493651. The reversal of 1493644 is 4463941.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1493641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2929 + ... + 3400.

It is an arithmetic number, because the mean of its divisors is an integer number (221550).

2^1493644 is an apocalyptic number.

It is an amenable number.

1493644 is a deficient number, since it is larger than the sum of its proper divisors (1164956).

1493644 is a wasteful number, since it uses less digits than its factorization.

1493644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6392 (or 6390 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 1493644 is about 1222.1472906324. The cubic root of 1493644 is about 114.3095108186.

The spelling of 1493644 in words is "one million, four hundred ninety-three thousand, six hundred forty-four".