1493649 has 6 divisors (see below), whose sum is σ = 2157506. Its totient is φ = 995760.

The previous prime is 1493641. The next prime is 1493651. The reversal of 1493649 is 9463941.

1493649 is a `hidden beast` number, since 1 + 4 + 9 + 3 + 649 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1476225 + 17424 = 1215^2 + 132^2 .

It is not a de Polignac number, because 1493649 - 2³ = 1493641 is a prime.

It is a Duffinian number.

1493649 is a lucky 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 5 ways as a sum of consecutive naturals, for example, 82972 + ... + 82989.

2^1493649 is an apocalyptic number.

It is an amenable number.

1493649 is a deficient number, since it is larger than the sum of its proper divisors (663857).

1493649 is a wasteful number, since it uses less digits than its factorization.

1493649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165967 (or 165964 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 1493649 is about 1222.1493362106. The cubic root of 1493649 is about 114.3096383695.

The spelling of 1493649 in words is "one million, four hundred ninety-three thousand, six hundred forty-nine".