260990739 has 6 divisors (see below), whose sum is σ = 376986636. Its totient is φ = 173993820.

The previous prime is 260990731. The next prime is 260990759. The reversal of 260990739 is 937099062.

260990739 is a `hidden beast` number, since 2 + 609 + 9 + 0 + 7 + 39 = 666.

It is not a de Polignac number, because 260990739 - 2³ = 260990731 is a prime.

It is a super-3 number, since 3×260990739³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 260990694 and 260990703.

It is not an unprimeable number, because it can be changed into a prime (260990731) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14499477 + ... + 14499494.

It is an arithmetic number, because the mean of its divisors is an integer number (62831106).

Almost surely, 2^260990739 is an apocalyptic number.

260990739 is a deficient number, since it is larger than the sum of its proper divisors (115995897).

260990739 is a wasteful number, since it uses less digits than its factorization.

260990739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28998977 (or 28998974 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 45.

The square root of 260990739 is about 16155.2077981065. The cubic root of 260990739 is about 639.0600941228.

The spelling of 260990739 in words is "two hundred sixty million, nine hundred ninety thousand, seven hundred thirty-nine".