65420344 has 48 divisors (see below), whose sum is σ = 141964200. Its totient is φ = 28163520.

The previous prime is 65420309. The next prime is 65420359. The reversal of 65420344 is 44302456.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16614 + ... + 20170.

Almost surely, 2^65420344 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 65420344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70982100).

65420344 is an abundant number, since it is smaller than the sum of its proper divisors (76543856).

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

65420344 is a wasteful number, since it uses less digits than its factorization.

65420344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3604 (or 3589 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 65420344 is about 8088.2843669100. The cubic root of 65420344 is about 402.9374260179.

The spelling of 65420344 in words is "sixty-five million, four hundred twenty thousand, three hundred forty-four".