423978552 has 48 divisors (see below), whose sum is σ = 1149950880. Its totient is φ = 141120000.

The previous prime is 423978517. The next prime is 423978557. The reversal of 423978552 is 255879324.

423978552 is a `hidden beast` number, since 4 + 2 + 3 + 97 + 8 + 552 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 423978498 and 423978507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423978557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50152 + ... + 57992.

It is an arithmetic number, because the mean of its divisors is an integer number (23957310).

Almost surely, 2^423978552 is an apocalyptic number.

It is an amenable number.

423978552 is an abundant number, since it is smaller than the sum of its proper divisors (725972328).

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

423978552 is a wasteful number, since it uses less digits than its factorization.

423978552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8604 (or 8597 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 423978552 is about 20590.7394719082. The cubic root of 423978552 is about 751.2444832066.

The spelling of 423978552 in words is "four hundred twenty-three million, nine hundred seventy-eight thousand, five hundred fifty-two".