427429768 has 8 divisors (see below), whose sum is σ = 801430830. Its totient is φ = 213714880.

The previous prime is 427429733. The next prime is 427429781. The reversal of 427429768 is 867924724.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 420988324 + 6441444 = 20518^2 + 2538^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26714353 + ... + 26714368.

Almost surely, 2^427429768 is an apocalyptic number.

It is an amenable number.

427429768 is a deficient number, since it is larger than the sum of its proper divisors (374001062).

427429768 is a wasteful number, since it uses less digits than its factorization.

427429768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53428727 (or 53428723 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 49.

The square root of 427429768 is about 20674.3746701079. The cubic root of 427429768 is about 753.2773719536.

It can be divided in two parts, 42742 and 9768, that multiplied together give a triangular number (417503856 = T₂₈₈₉₆).

The spelling of 427429768 in words is "four hundred twenty-seven million, four hundred twenty-nine thousand, seven hundred sixty-eight".