65672340 has 24 divisors (see below), whose sum is σ = 183882720. Its totient is φ = 17512608.

The previous prime is 65672329. The next prime is 65672351. The reversal of 65672340 is 4327656.

It is an interprime number because it is at equal distance from previous prime (65672329) and next prime (65672351).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547210 + ... + 547329.

It is an arithmetic number, because the mean of its divisors is an integer number (7661780).

Almost surely, 2^65672340 is an apocalyptic number.

65672340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65672340 is an abundant number, since it is smaller than the sum of its proper divisors (118210380).

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

65672340 is a wasteful number, since it uses less digits than its factorization.

65672340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094551 (or 1094549 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 65672340 is about 8103.8472344930. The cubic root of 65672340 is about 403.4541283041.

Adding to 65672340 its reverse (4327656), we get a palindrome (69999996).

The spelling of 65672340 in words is "sixty-five million, six hundred seventy-two thousand, three hundred forty".