65042278 has 16 divisors (see below), whose sum is σ = 115098624. Its totient is φ = 26975880.

The previous prime is 65042261. The next prime is 65042281. The reversal of 65042278 is 87224056.

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, 74500 + ... + 75367.

It is an arithmetic number, because the mean of its divisors is an integer number (7193664).

Almost surely, 2^65042278 is an apocalyptic number.

65042278 is a deficient number, since it is larger than the sum of its proper divisors (50056346).

65042278 is a wasteful number, since it uses less digits than its factorization.

65042278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149907.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 65042278 is about 8064.8792923391. The cubic root of 65042278 is about 402.1597304239.

The spelling of 65042278 in words is "sixty-five million, forty-two thousand, two hundred seventy-eight".