742933505 has 8 divisors (see below), whose sum is σ = 896446824. Its totient is φ = 591062400.

The previous prime is 742933501. The next prime is 742933523. The reversal of 742933505 is 505339247.

It can be written as a sum of positive squares in 4 ways, for example, as 18731584 + 724201921 = 4328^2 + 26911^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 742933505 - 2² = 742933501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (742933501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409556 + ... + 411365.

It is an arithmetic number, because the mean of its divisors is an integer number (112055853).

Almost surely, 2^742933505 is an apocalyptic number.

It is an amenable number.

742933505 is a deficient number, since it is larger than the sum of its proper divisors (153513319).

742933505 is a wasteful number, since it uses less digits than its factorization.

742933505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821107.

The product of its (nonzero) digits is 113400, while the sum is 38.

The square root of 742933505 is about 27256.8065811092. The cubic root of 742933505 is about 905.6978043579.

The spelling of 742933505 in words is "seven hundred forty-two million, nine hundred thirty-three thousand, five hundred five".