257090029260 has 48 divisors (see below), whose sum is σ = 720079911936. Its totient is φ = 68535643072.

The previous prime is 257090029241. The next prime is 257090029307. The reversal of 257090029260 is 62920090752.

It is a super-2 number, since 2×257090029260² (a number of 24 digits) contains 22 as substring.

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, 486462 + ... + 866501.

It is an arithmetic number, because the mean of its divisors is an integer number (15001664832).

Almost surely, 2^257090029260 is an apocalyptic number.

257090029260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

257090029260 is an abundant number, since it is smaller than the sum of its proper divisors (462989882676).

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

257090029260 is a wasteful number, since it uses less digits than its factorization.

257090029260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356142 (or 1356140 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 42.

The spelling of 257090029260 in words is "two hundred fifty-seven billion, ninety million, twenty-nine thousand, two hundred sixty".