1648769452 has 12 divisors (see below), whose sum is σ = 3147650856. Its totient is φ = 749440640.

The previous prime is 1648769443. The next prime is 1648769461. The reversal of 1648769452 is 2549678461.

It is an interprime number because it is at equal distance from previous prime (1648769443) and next prime (1648769461).

It is a self number, because there is not a number n which added to its sum of digits gives 1648769452.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18735973 + ... + 18736060.

It is an arithmetic number, because the mean of its divisors is an integer number (262304238).

Almost surely, 2^1648769452 is an apocalyptic number.

It is an amenable number.

1648769452 is a deficient number, since it is larger than the sum of its proper divisors (1498881404).

1648769452 is a wasteful number, since it uses less digits than its factorization.

1648769452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37472048 (or 37472046 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 52.

The square root of 1648769452 is about 40605.0421992146. The cubic root of 1648769452 is about 1181.3719205569.

Subtracting 1648769452 from its reverse (2549678461), we obtain a palindrome (900909009).

The spelling of 1648769452 in words is "one billion, six hundred forty-eight million, seven hundred sixty-nine thousand, four hundred fifty-two".