427263842 has 4 divisors (see below), whose sum is σ = 640895766. Its totient is φ = 213631920.

The previous prime is 427263841. The next prime is 427263853. The reversal of 427263842 is 248362724.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 266962921 + 160300921 = 16339^2 + 12661^2 .

It is a junction number, because it is equal to n+sod(n) for n = 427263796 and 427263805.

It is not an unprimeable number, because it can be changed into a prime (427263841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106815959 + ... + 106815962.

Almost surely, 2^427263842 is an apocalyptic number.

427263842 is a deficient number, since it is larger than the sum of its proper divisors (213631924).

427263842 is a wasteful number, since it uses less digits than its factorization.

427263842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213631923.

The product of its digits is 129024, while the sum is 38.

The square root of 427263842 is about 20670.3614385429. The cubic root of 427263842 is about 753.1798865596.

The spelling of 427263842 in words is "four hundred twenty-seven million, two hundred sixty-three thousand, eight hundred forty-two".