64238066 has 8 divisors (see below), whose sum is σ = 96441840. Its totient is φ = 32090788.

The previous prime is 64238051. The next prime is 64238081. The reversal of 64238066 is 66083246.

It is an interprime number because it is at equal distance from previous prime (64238051) and next prime (64238081).

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

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, 11156 + ... + 15903.

It is an arithmetic number, because the mean of its divisors is an integer number (12055230).

Almost surely, 2^64238066 is an apocalyptic number.

64238066 is a deficient number, since it is larger than the sum of its proper divisors (32203774).

64238066 is a wasteful number, since it uses less digits than its factorization.

64238066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28248.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 64238066 is about 8014.8653139027. The cubic root of 64238066 is about 400.4953571334.

The spelling of 64238066 in words is "sixty-four million, two hundred thirty-eight thousand, sixty-six".