65246940 has 144 divisors (see below), whose sum is σ = 223082496. Its totient is φ = 15292800.

The previous prime is 65246939. The next prime is 65246957. The reversal of 65246940 is 4964256.

It is a super-3 number, since 3×65246940³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 65246895 and 65246904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60849 + ... + 61911.

It is an arithmetic number, because the mean of its divisors is an integer number (1549184).

Almost surely, 2^65246940 is an apocalyptic number.

65246940 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 65246940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111541248).

65246940 is an abundant number, since it is smaller than the sum of its proper divisors (157835556).

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

65246940 is a wasteful number, since it uses less digits than its factorization.

65246940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120 (or 1115 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 65246940 is about 8077.5577992361. The cubic root of 65246940 is about 402.5811006414.

The spelling of 65246940 in words is "sixty-five million, two hundred forty-six thousand, nine hundred forty".