1493415664 has 40 divisors (see below), whose sum is σ = 3167179232. Its totient is φ = 677963520.

The previous prime is 1493415661. The next prime is 1493415667. The reversal of 1493415664 is 4665143941.

It is an interprime number because it is at equal distance from previous prime (1493415661) and next prime (1493415667).

It is a self number, because there is not a number n which added to its sum of digits gives 1493415664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1493415661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46164 + ... + 71539.

Almost surely, 2^1493415664 is an apocalyptic number.

It is an amenable number.

1493415664 is an abundant number, since it is smaller than the sum of its proper divisors (1673763568).

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

1493415664 is a wasteful number, since it uses less digits than its factorization.

1493415664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117785 (or 117779 counting only the distinct ones).

The product of its digits is 311040, while the sum is 43.

The square root of 1493415664 is about 38644.7365626938. The cubic root of 1493415664 is about 1143.0368562268.

The spelling of 1493415664 in words is "one billion, four hundred ninety-three million, four hundred fifteen thousand, six hundred sixty-four".