819963480 has 64 divisors (see below), whose sum is σ = 2811306240. Its totient is φ = 187420032.

The previous prime is 819963479. The next prime is 819963481. The reversal of 819963480 is 84369918.

It is an interprime number because it is at equal distance from previous prime (819963479) and next prime (819963481).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (819963481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 487234 + ... + 488913.

It is an arithmetic number, because the mean of its divisors is an integer number (43926660).

Almost surely, 2^819963480 is an apocalyptic number.

It is an amenable number.

819963480 is an abundant number, since it is smaller than the sum of its proper divisors (1991342760).

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

819963480 is a wasteful number, since it uses less digits than its factorization.

819963480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976168 (or 976164 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 819963480 is about 28635.0044525926. The cubic root of 819963480 is about 935.9762668392.

The spelling of 819963480 in words is "eight hundred nineteen million, nine hundred sixty-three thousand, four hundred eighty".