64271642 has 8 divisors (see below), whose sum is σ = 101481600. Its totient is φ = 30444444.

The previous prime is 64271633. The next prime is 64271651. The reversal of 64271642 is 24617246.

It is an interprime number because it is at equal distance from previous prime (64271633) and next prime (64271651).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 64271599 and 64271608.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 845642 + ... + 845717.

It is an arithmetic number, because the mean of its divisors is an integer number (12685200).

Almost surely, 2^64271642 is an apocalyptic number.

64271642 is a deficient number, since it is larger than the sum of its proper divisors (37209958).

64271642 is a wasteful number, since it uses less digits than its factorization.

64271642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691380.

The product of its digits is 16128, while the sum is 32.

The square root of 64271642 is about 8016.9596481459. The cubic root of 64271642 is about 400.5651220500.

Adding to 64271642 its reverse (24617246), we get a palindrome (88888888).

The spelling of 64271642 in words is "sixty-four million, two hundred seventy-one thousand, six hundred forty-two".