662642013 has 16 divisors (see below), whose sum is σ = 964383552. Its totient is φ = 401376000.

The previous prime is 662642009. The next prime is 662642021. The reversal of 662642013 is 310246266.

It is not a de Polignac number, because 662642013 - 2² = 662642009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662642003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68773 + ... + 77813.

It is an arithmetic number, because the mean of its divisors is an integer number (60273972).

Almost surely, 2^662642013 is an apocalyptic number.

It is an amenable number.

662642013 is a deficient number, since it is larger than the sum of its proper divisors (301741539).

662642013 is a wasteful number, since it uses less digits than its factorization.

662642013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11276.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 662642013 is about 25741.8339090283. The cubic root of 662642013 is about 871.8189858851.

Adding to 662642013 its reverse (310246266), we get a palindrome (972888279).

The spelling of 662642013 in words is "six hundred sixty-two million, six hundred forty-two thousand, thirteen".