65390248 has 128 divisors (see below), whose sum is σ = 166348800. Its totient is φ = 23328000.

The previous prime is 65390243. The next prime is 65390291. The reversal of 65390248 is 84209356.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (65390243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 432973 + ... + 433123.

It is an arithmetic number, because the mean of its divisors is an integer number (1299600).

Almost surely, 2^65390248 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 65390248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83174400).

65390248 is an abundant number, since it is smaller than the sum of its proper divisors (100958552).

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

65390248 is a wasteful number, since it uses less digits than its factorization.

65390248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 65390248 is about 8086.4236841758. The cubic root of 65390248 is about 402.8756273779.

The spelling of 65390248 in words is "sixty-five million, three hundred ninety thousand, two hundred forty-eight".