427277378 has 12 divisors (see below), whose sum is σ = 704478390. Its totient is φ = 194216880.

The previous prime is 427277327. The next prime is 427277393. The reversal of 427277378 is 873772724.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 228100609 + 199176769 = 15103^2 + 14113^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 882563 + ... + 883046.

Almost surely, 2^427277378 is an apocalyptic number.

427277378 is a deficient number, since it is larger than the sum of its proper divisors (277201012).

427277378 is a wasteful number, since it uses less digits than its factorization.

427277378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1765633 (or 1765622 counting only the distinct ones).

The product of its digits is 921984, while the sum is 47.

The square root of 427277378 is about 20670.6888612837. The cubic root of 427277378 is about 753.1878402206.

It can be divided in two parts, 42727 and 7378, that added together give a palindrome (50105).

The spelling of 427277378 in words is "four hundred twenty-seven million, two hundred seventy-seven thousand, three hundred seventy-eight".