65373420 has 96 divisors (see below), whose sum is σ = 215986176. Its totient is φ = 14457600.

The previous prime is 65373409. The next prime is 65373421. The reversal of 65373420 is 2437356.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (65373421) 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, 10510 + ... + 15530.

It is an arithmetic number, because the mean of its divisors is an integer number (2249856).

Almost surely, 2^65373420 is an apocalyptic number.

65373420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65373420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107993088).

65373420 is an abundant number, since it is smaller than the sum of its proper divisors (150612756).

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

65373420 is a wasteful number, since it uses less digits than its factorization.

65373420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5071 (or 5069 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 65373420 is about 8085.3831078063. The cubic root of 65373420 is about 402.8410647690.

The spelling of 65373420 in words is "sixty-five million, three hundred seventy-three thousand, four hundred twenty".