65114940 has 72 divisors (see below), whose sum is σ = 200425680. Its totient is φ = 15783680.

The previous prime is 65114927. The next prime is 65114963. The reversal of 65114940 is 4941156.

It is a happy number.

It is a super-2 number, since 2×65114940² = 8479910822407200, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 65114898 and 65114907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2776 + ... + 11744.

It is an arithmetic number, because the mean of its divisors is an integer number (2783690).

Almost surely, 2^65114940 is an apocalyptic number.

65114940 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 65114940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100212840).

65114940 is an abundant number, since it is smaller than the sum of its proper divisors (135310740).

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

65114940 is a wasteful number, since it uses less digits than its factorization.

65114940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9003 (or 8990 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 65114940 is about 8069.3828760321. The cubic root of 65114940 is about 402.3094323116.

The spelling of 65114940 in words is "sixty-five million, one hundred fourteen thousand, nine hundred forty".