64297338 has 64 divisors (see below), whose sum is σ = 150958080. Its totient is φ = 17880192.

The previous prime is 64297319. The next prime is 64297357. The reversal of 64297338 is 83379246.

It is an interprime number because it is at equal distance from previous prime (64297319) and next prime (64297357).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 64297338.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 384931 + ... + 385097.

It is an arithmetic number, because the mean of its divisors is an integer number (2358720).

Almost surely, 2^64297338 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64297338, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75479040).

64297338 is an abundant number, since it is smaller than the sum of its proper divisors (86660742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64297338 is a wasteful number, since it uses less digits than its factorization.

64297338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371.

The product of its digits is 217728, while the sum is 42.

The square root of 64297338 is about 8018.5620905497. The cubic root of 64297338 is about 400.6184973264.

The spelling of 64297338 in words is "sixty-four million, two hundred ninety-seven thousand, three hundred thirty-eight".