65189432 has 64 divisors (see below), whose sum is σ = 154103040. Its totient is φ = 25113600.

The previous prime is 65189393. The next prime is 65189483. The reversal of 65189432 is 23498156.

It is a happy number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59207 + ... + 60297.

It is an arithmetic number, because the mean of its divisors is an integer number (2407860).

Almost surely, 2^65189432 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 65189432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77051520).

65189432 is an abundant number, since it is smaller than the sum of its proper divisors (88913608).

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

65189432 is a wasteful number, since it uses less digits than its factorization.

65189432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212 (or 1208 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 65189432 is about 8073.9972752039. The cubic root of 65189432 is about 402.4627888905.

The spelling of 65189432 in words is "sixty-five million, one hundred eighty-nine thousand, four hundred thirty-two".