258287416 has 8 divisors (see below), whose sum is σ = 484288920. Its totient is φ = 129143704.

The previous prime is 258287371. The next prime is 258287423. The reversal of 258287416 is 614782852.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16142956 + ... + 16142971.

It is an arithmetic number, because the mean of its divisors is an integer number (60536115).

Almost surely, 2^258287416 is an apocalyptic number.

It is an amenable number.

258287416 is a deficient number, since it is larger than the sum of its proper divisors (226001504).

258287416 is a wasteful number, since it uses less digits than its factorization.

258287416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32285933 (or 32285929 counting only the distinct ones).

The product of its digits is 215040, while the sum is 43.

The square root of 258287416 is about 16071.3227831439. The cubic root of 258287416 is about 636.8459859954.

It can be divided in two parts, 2582 and 87416, that added together give a palindrome (89998).

The spelling of 258287416 in words is "two hundred fifty-eight million, two hundred eighty-seven thousand, four hundred sixteen".