742405575 has 24 divisors (see below), whose sum is σ = 1228242816. Its totient is φ = 395692000.

The previous prime is 742405571. The next prime is 742405583. The reversal of 742405575 is 575504247.

It is not a de Polignac number, because 742405575 - 2² = 742405571 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742405571) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 187870 + ... + 191780.

It is an arithmetic number, because the mean of its divisors is an integer number (51176784).

Almost surely, 2^742405575 is an apocalyptic number.

742405575 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

742405575 is a deficient number, since it is larger than the sum of its proper divisors (485837241).

742405575 is a wasteful number, since it uses less digits than its factorization.

742405575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6455 (or 6450 counting only the distinct ones).

The product of its (nonzero) digits is 196000, while the sum is 39.

The square root of 742405575 is about 27247.1204900628. The cubic root of 742405575 is about 905.4832233130.

The spelling of 742405575 in words is "seven hundred forty-two million, four hundred five thousand, five hundred seventy-five".