742775045 has 8 divisors (see below), whose sum is σ = 891583224. Its totient is φ = 594051264.

The previous prime is 742775023. The next prime is 742775069. The reversal of 742775045 is 540577247.

It can be written as a sum of positive squares in 4 ways, for example, as 52504516 + 690270529 = 7246^2 + 26273^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 742775045 - 2⁸ = 742774789 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 742774993 and 742775011.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 227 + ... + 38543.

It is an arithmetic number, because the mean of its divisors is an integer number (111447903).

Almost surely, 2^742775045 is an apocalyptic number.

It is an amenable number.

742775045 is a deficient number, since it is larger than the sum of its proper divisors (148808179).

742775045 is a wasteful number, since it uses less digits than its factorization.

742775045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42199.

The product of its (nonzero) digits is 274400, while the sum is 41.

The square root of 742775045 is about 27253.8996292274. The cubic root of 742775045 is about 905.6334078012.

The spelling of 742775045 in words is "seven hundred forty-two million, seven hundred seventy-five thousand, forty-five".