65450380 has 24 divisors (see below), whose sum is σ = 138454848. Its totient is φ = 25987968.

The previous prime is 65450369. The next prime is 65450381. The reversal of 65450380 is 8305456.

It is not an unprimeable number, because it can be changed into a prime (65450381) 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, 9204 + ... + 14683.

It is an arithmetic number, because the mean of its divisors is an integer number (5768952).

Almost surely, 2^65450380 is an apocalyptic number.

It is an amenable number.

65450380 is an abundant number, since it is smaller than the sum of its proper divisors (73004468).

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

65450380 is a wasteful number, since it uses less digits than its factorization.

65450380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24033 (or 24031 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 65450380 is about 8090.1409134823. The cubic root of 65450380 is about 402.9990825611. Note that the first 3 decimals are identical.

The spelling of 65450380 in words is "sixty-five million, four hundred fifty thousand, three hundred eighty".