1893653972 has 24 divisors (see below), whose sum is σ = 3909480960. Its totient is φ = 785386080.

The previous prime is 1893653959. The next prime is 1893653989. The reversal of 1893653972 is 2793563981.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1089947 + ... + 1091682.

It is an arithmetic number, because the mean of its divisors is an integer number (162895040).

Almost surely, 2^1893653972 is an apocalyptic number.

It is an amenable number.

1893653972 is an abundant number, since it is smaller than the sum of its proper divisors (2015826988).

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

1893653972 is a wasteful number, since it uses less digits than its factorization.

1893653972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2181671 (or 2181669 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 53.

The square root of 1893653972 is about 43516.1346169441. The cubic root of 1893653972 is about 1237.1818527386.

The spelling of 1893653972 in words is "one billion, eight hundred ninety-three million, six hundred fifty-three thousand, nine hundred seventy-two".