1493651418 has 48 divisors (see below), whose sum is σ = 3626130240. Its totient is φ = 408201024.

The previous prime is 1493651417. The next prime is 1493651449. The reversal of 1493651418 is 8141563941.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 1493651418.

It is not an unprimeable number, because it can be changed into a prime (1493651417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103683 + ... + 117206.

It is an arithmetic number, because the mean of its divisors is an integer number (75544380).

Almost surely, 2^1493651418 is an apocalyptic number.

1493651418 is an abundant number, since it is smaller than the sum of its proper divisors (2132478822).

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

1493651418 is a wasteful number, since it uses less digits than its factorization.

1493651418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220931 (or 220924 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 1493651418 is about 38647.7867154123. The cubic root of 1493651418 is about 1143.0970005297.

The spelling of 1493651418 in words is "one billion, four hundred ninety-three million, six hundred fifty-one thousand, four hundred eighteen".