258747742 has 32 divisors (see below), whose sum is σ = 432656640. Its totient is φ = 115072320.

The previous prime is 258747647. The next prime is 258747743. The reversal of 258747742 is 247747852.

It is a junction number, because it is equal to n+sod(n) for n = 258747692 and 258747701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258747743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201033 + ... + 202315.

It is an arithmetic number, because the mean of its divisors is an integer number (13520520).

Almost surely, 2^258747742 is an apocalyptic number.

258747742 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

258747742 is a deficient number, since it is larger than the sum of its proper divisors (173908898).

258747742 is a wasteful number, since it uses less digits than its factorization.

258747742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488.

The product of its digits is 878080, while the sum is 46.

The square root of 258747742 is about 16085.6377554637. The cubic root of 258747742 is about 637.2240954998.

The spelling of 258747742 in words is "two hundred fifty-eight million, seven hundred forty-seven thousand, seven hundred forty-two".