742086578 has 16 divisors (see below), whose sum is σ = 1148656704. Its totient is φ = 359296560.

The previous prime is 742086571. The next prime is 742086607. The reversal of 742086578 is 875680247.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (742086571) 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 7 ways as a sum of consecutive naturals, for example, 8150 + ... + 39377.

It is an arithmetic number, because the mean of its divisors is an integer number (71791044).

Almost surely, 2^742086578 is an apocalyptic number.

742086578 is a deficient number, since it is larger than the sum of its proper divisors (406570126).

742086578 is a wasteful number, since it uses less digits than its factorization.

742086578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47777.

The product of its (nonzero) digits is 752640, while the sum is 47.

The square root of 742086578 is about 27241.2660865827. The cubic root of 742086578 is about 905.3535153196.

The spelling of 742086578 in words is "seven hundred forty-two million, eighty-six thousand, five hundred seventy-eight".