64538322 has 16 divisors (see below), whose sum is σ = 134688960. Its totient is φ = 20577392.

The previous prime is 64538321. The next prime is 64538333. The reversal of 64538322 is 22383546.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (64538321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233697 + ... + 233972.

It is an arithmetic number, because the mean of its divisors is an integer number (8418060).

Almost surely, 2^64538322 is an apocalyptic number.

64538322 is an abundant number, since it is smaller than the sum of its proper divisors (70150638).

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

64538322 is a wasteful number, since it uses less digits than its factorization.

64538322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467697.

The product of its digits is 34560, while the sum is 33.

The square root of 64538322 is about 8033.5746713403. The cubic root of 64538322 is about 401.1183743495.

The spelling of 64538322 in words is "sixty-four million, five hundred thirty-eight thousand, three hundred twenty-two".