65276140 has 24 divisors (see below), whose sum is σ = 140786352. Its totient is φ = 25404480.

The previous prime is 65276117. The next prime is 65276143. The reversal of 65276140 is 4167256.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (65276143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43366 + ... + 44845.

It is an arithmetic number, because the mean of its divisors is an integer number (5866098).

Almost surely, 2^65276140 is an apocalyptic number.

It is an amenable number.

65276140 is an abundant number, since it is smaller than the sum of its proper divisors (75510212).

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

65276140 is a wasteful number, since it uses less digits than its factorization.

65276140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88257 (or 88255 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 65276140 is about 8079.3650740637. The cubic root of 65276140 is about 402.6411474673.

The spelling of 65276140 in words is "sixty-five million, two hundred seventy-six thousand, one hundred forty".