66238032 has 40 divisors (see below), whose sum is σ = 195560896. Its totient is φ = 18925056.

The previous prime is 66238031. The next prime is 66238049. The reversal of 66238032 is 23083266.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66238031) 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, 98233 + ... + 98904.

Almost surely, 2^66238032 is an apocalyptic number.

It is an amenable number.

66238032 is an abundant number, since it is smaller than the sum of its proper divisors (129322864).

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

66238032 is a wasteful number, since it uses less digits than its factorization.

66238032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197155 (or 197149 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 66238032 is about 8138.6750764483. The cubic root of 66238032 is about 404.6092497006.

The spelling of 66238032 in words is "sixty-six million, two hundred thirty-eight thousand, thirty-two".