427542349 has 4 divisors (see below), whose sum is σ = 460430236. Its totient is φ = 394654464.

The previous prime is 427542319. The next prime is 427542371. The reversal of 427542349 is 943245724.

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

It can be written as a sum of positive squares in 2 ways, for example, as 150552900 + 276989449 = 12270^2 + 16643^2 .

It is a cyclic number.

It is not a de Polignac number, because 427542349 - 2⁹ = 427541837 is a prime.

It is a Duffinian number.

It is a zygodrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427542319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16443924 + ... + 16443949.

It is an arithmetic number, because the mean of its divisors is an integer number (115107559).

Almost surely, 2^427542349 is an apocalyptic number.

It is an amenable number.

427542349 is a deficient number, since it is larger than the sum of its proper divisors (32887887).

427542349 is a wasteful number, since it uses less digits than its factorization.

427542349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32887886.

The product of its digits is 241920, while the sum is 40.

The square root of 427542349 is about 20677.0972092313. The cubic root of 427542349 is about 753.3435015509.

The spelling of 427542349 in words is "four hundred twenty-seven million, five hundred forty-two thousand, three hundred forty-nine".