510663420 has 48 divisors (see below), whose sum is σ = 1588732320. Its totient is φ = 136176768.

The previous prime is 510663383. The next prime is 510663421. The reversal of 510663420 is 24366015.

510663420 is a `hidden beast` number, since 5 + 1 + 0 + 6 + 634 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (510663421) 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, 472297 + ... + 473376.

It is an arithmetic number, because the mean of its divisors is an integer number (33098590).

Almost surely, 2^510663420 is an apocalyptic number.

It is an amenable number.

510663420 is an abundant number, since it is smaller than the sum of its proper divisors (1078068900).

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

510663420 is a wasteful number, since it uses less digits than its factorization.

510663420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945691 (or 945683 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 510663420 is about 22597.8631733180. The cubic root of 510663420 is about 799.3032579476.

The spelling of 510663420 in words is "five hundred ten million, six hundred sixty-three thousand, four hundred twenty".