742857258 has 32 divisors (see below), whose sum is σ = 1745456832. Its totient is φ = 207792000.

The previous prime is 742857217. The next prime is 742857277. The reversal of 742857258 is 852758247.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 432043 + ... + 433758.

It is an arithmetic number, because the mean of its divisors is an integer number (54545526).

Almost surely, 2^742857258 is an apocalyptic number.

742857258 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

742857258 is an abundant number, since it is smaller than the sum of its proper divisors (1002599574).

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

742857258 is a wasteful number, since it uses less digits than its factorization.

742857258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865830.

The product of its digits is 1254400, while the sum is 48.

The square root of 742857258 is about 27255.4078670637. The cubic root of 742857258 is about 905.6668194840. Note that the first 3 decimals are identical.

The spelling of 742857258 in words is "seven hundred forty-two million, eight hundred fifty-seven thousand, two hundred fifty-eight".