260642016 has 48 divisors (see below), whose sum is σ = 760208400. Its totient is φ = 86880384.

The previous prime is 260641987. The next prime is 260642027. The reversal of 260642016 is 610246062.

It is a happy number.

260642016 is a `hidden beast` number, since 2 + 6 + 0 + 642 + 0 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 149971 + ... + 151698.

It is an arithmetic number, because the mean of its divisors is an integer number (15837675).

Almost surely, 2^260642016 is an apocalyptic number.

It is an amenable number.

260642016 is an abundant number, since it is smaller than the sum of its proper divisors (499566384).

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

260642016 is a wasteful number, since it uses less digits than its factorization.

260642016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301688 (or 301674 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 260642016 is about 16144.4112930760. The cubic root of 260642016 is about 638.7753403626.

Adding to 260642016 its reverse (610246062), we get a palindrome (870888078).

The spelling of 260642016 in words is "two hundred sixty million, six hundred forty-two thousand, sixteen".