662440427 has 4 divisors (see below), whose sum is σ = 722662296. Its totient is φ = 602218560.

The previous prime is 662440423. The next prime is 662440433. The reversal of 662440427 is 724044266.

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

It is a cyclic number.

It is not a de Polignac number, because 662440427 - 2² = 662440423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (662440423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30110918 + ... + 30110939.

It is an arithmetic number, because the mean of its divisors is an integer number (180665574).

Almost surely, 2^662440427 is an apocalyptic number.

662440427 is a deficient number, since it is larger than the sum of its proper divisors (60221869).

662440427 is a wasteful number, since it uses less digits than its factorization.

662440427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60221868.

The product of its (nonzero) digits is 64512, while the sum is 35.

The square root of 662440427 is about 25737.9180781974. The cubic root of 662440427 is about 871.7305699565.

The spelling of 662440427 in words is "six hundred sixty-two million, four hundred forty thousand, four hundred twenty-seven".