64073328 has 40 divisors (see below), whose sum is σ = 180571776. Its totient is φ = 19416000.

The previous prime is 64073327. The next prime is 64073329. The reversal of 64073328 is 82337046.

It is an interprime number because it is at equal distance from previous prime (64073327) and next prime (64073329).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64073327) 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, 60148 + ... + 61203.

Almost surely, 2^64073328 is an apocalyptic number.

It is an amenable number.

64073328 is an abundant number, since it is smaller than the sum of its proper divisors (116498448).

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

64073328 is a wasteful number, since it uses less digits than its factorization.

64073328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121373 (or 121367 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 64073328 is about 8004.5816880084. The cubic root of 64073328 is about 400.1527083596.

The spelling of 64073328 in words is "sixty-four million, seventy-three thousand, three hundred twenty-eight".