257333034 has 32 divisors (see below), whose sum is σ = 595284480. Its totient is φ = 72636912.

The previous prime is 257333009. The next prime is 257333051. The reversal of 257333034 is 430333752.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 257332992 and 257333010.

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, 33424 + ... + 40395.

It is an arithmetic number, because the mean of its divisors is an integer number (18602640).

Almost surely, 2^257333034 is an apocalyptic number.

257333034 is an abundant number, since it is smaller than the sum of its proper divisors (337951446).

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

257333034 is a wasteful number, since it uses less digits than its factorization.

257333034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73914.

The product of its (nonzero) digits is 22680, while the sum is 30.

The square root of 257333034 is about 16041.6032241170. The cubic root of 257333034 is about 636.0606277001.

Adding to 257333034 its reverse (430333752), we get a palindrome (687666786).

The spelling of 257333034 in words is "two hundred fifty-seven million, three hundred thirty-three thousand, thirty-four".