65405382 has 32 divisors (see below), whose sum is σ = 154656000. Its totient is φ = 18042528.

The previous prime is 65405371. The next prime is 65405387. The reversal of 65405382 is 28350456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65405387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25632 + ... + 28067.

It is an arithmetic number, because the mean of its divisors is an integer number (4833000).

Almost surely, 2^65405382 is an apocalyptic number.

65405382 is an abundant number, since it is smaller than the sum of its proper divisors (89250618).

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

65405382 is a wasteful number, since it uses less digits than its factorization.

65405382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53740.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 65405382 is about 8087.3593959957. The cubic root of 65405382 is about 402.9067056585.

The spelling of 65405382 in words is "sixty-five million, four hundred five thousand, three hundred eighty-two".