260692978 has 24 divisors (see below), whose sum is σ = 483928128. Its totient is φ = 103130352.

The previous prime is 260692937. The next prime is 260692979. The reversal of 260692978 is 879296062.

It is a super-5 number, since 5×260692978⁵ (a number of 43 digits) contains 55555 as substring.

It is not an unprimeable number, because it can be changed into a prime (260692979) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52726 + ... + 57457.

It is an arithmetic number, because the mean of its divisors is an integer number (20163672).

Almost surely, 2^260692978 is an apocalyptic number.

260692978 is a deficient number, since it is larger than the sum of its proper divisors (223235150).

260692978 is a wasteful number, since it uses less digits than its factorization.

260692978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110218 (or 110205 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 260692978 is about 16145.9895330079. The cubic root of 260692978 is about 638.8169698077.

The spelling of 260692978 in words is "two hundred sixty million, six hundred ninety-two thousand, nine hundred seventy-eight".