1493571444 has 24 divisors (see below), whose sum is σ = 3597420288. Its totient is φ = 481797120.

The previous prime is 1493571433. The next prime is 1493571451. The reversal of 1493571444 is 4441753941.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1493571396 and 1493571405.

It is a congruent number.

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, 2007117 + ... + 2007860.

It is an arithmetic number, because the mean of its divisors is an integer number (149892512).

Almost surely, 2^1493571444 is an apocalyptic number.

It is an amenable number.

1493571444 is an abundant number, since it is smaller than the sum of its proper divisors (2103848844).

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

1493571444 is a wasteful number, since it uses less digits than its factorization.

1493571444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4015015 (or 4015013 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 1493571444 is about 38646.7520498166. The cubic root of 1493571444 is about 1143.0765986988.

The spelling of 1493571444 in words is "one billion, four hundred ninety-three million, five hundred seventy-one thousand, four hundred forty-four".