64203072 has 56 divisors (see below), whose sum is σ = 171273216. Its totient is φ = 21224448.

The previous prime is 64203059. The next prime is 64203119. The reversal of 64203072 is 27030246.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23068 + ... + 25700.

Almost surely, 2^64203072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64203072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85636608).

64203072 is an abundant number, since it is smaller than the sum of its proper divisors (107070144).

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

64203072 is a wasteful number, since it uses less digits than its factorization.

64203072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2775 (or 2765 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 64203072 is about 8012.6819480122. The cubic root of 64203072 is about 400.4226199903.

The spelling of 64203072 in words is "sixty-four million, two hundred three thousand, seventy-two".