742928033 has 8 divisors (see below), whose sum is σ = 786962952. Its totient is φ = 698930176.

The previous prime is 742927973. The next prime is 742928047. The reversal of 742928033 is 330829247.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 230675344 + 512252689 = 15188^2 + 22633^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-742928033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (742928833) 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, 39341 + ... + 55077.

It is an arithmetic number, because the mean of its divisors is an integer number (98370369).

Almost surely, 2^742928033 is an apocalyptic number.

742928033 is the 15737-th octagonal number.

It is an amenable number.

742928033 is a deficient number, since it is larger than the sum of its proper divisors (44034919).

742928033 is a wasteful number, since it uses less digits than its factorization.

742928033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18531.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 742928033 is about 27256.7062023275. The cubic root of 742928033 is about 905.6955807446.

The spelling of 742928033 in words is "seven hundred forty-two million, nine hundred twenty-eight thousand, thirty-three".