65960440 has 64 divisors (see below), whose sum is σ = 182669760. Its totient is φ = 20874240.

The previous prime is 65960437. The next prime is 65960441. The reversal of 65960440 is 4406956.

65960440 = T₁₃₉₂ + T₁₃₉₃ + ... + T₁₄₅₆.

It is a junction number, because it is equal to n+sod(n) for n = 65960396 and 65960405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65960441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5421 + ... + 12700.

It is an arithmetic number, because the mean of its divisors is an integer number (2854215).

Almost surely, 2^65960440 is an apocalyptic number.

It is an amenable number.

65960440 is an abundant number, since it is smaller than the sum of its proper divisors (116709320).

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

65960440 is a wasteful number, since it uses less digits than its factorization.

65960440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18152 (or 18148 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 65960440 is about 8121.6032899915. The cubic root of 65960440 is about 404.0432427653.

The spelling of 65960440 in words is "sixty-five million, nine hundred sixty thousand, four hundred forty".