65040918 has 32 divisors (see below), whose sum is σ = 136152576. Its totient is φ = 20674368.

The previous prime is 65040901. The next prime is 65040949. The reversal of 65040918 is 81904056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68946 + ... + 69882.

It is an arithmetic number, because the mean of its divisors is an integer number (4254768).

Almost surely, 2^65040918 is an apocalyptic number.

65040918 is an abundant number, since it is smaller than the sum of its proper divisors (71111658).

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

65040918 is a wasteful number, since it uses less digits than its factorization.

65040918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 65040918 is about 8064.7949756953. The cubic root of 65040918 is about 402.1569274212.

The spelling of 65040918 in words is "sixty-five million, forty thousand, nine hundred eighteen".