3042735921 has 33 divisors (see below), whose sum is σ = 4584272761. Its totient is φ = 2019554532.

The previous prime is 3042735889. The next prime is 3042735929. The reversal of 3042735921 is 1295372403.

The square root of 3042735921 is 55161.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 3042735921 - 2⁵ = 3042735889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3042735929) by changing a digit.

It is a polite number, since it can be written in 32 ways as a sum of consecutive naturals, for example, 13404010 + ... + 13404236.

Almost surely, 2^3042735921 is an apocalyptic number.

3042735921 is the 55161-st square number.

3042735921 is the 27581-st centered octagonal number.

It is an amenable number.

3042735921 is a deficient number, since it is larger than the sum of its proper divisors (1541536840).

3042735921 is an frugal number, since it uses more digits than its factorization.

3042735921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The cubic root of 3042735921 is about 1449.0657352224.

Multiplying 3042735921 by its sum of digits (36), we get a square (109538493156 = 330966²).

The spelling of 3042735921 in words is "three billion, forty-two million, seven hundred thirty-five thousand, nine hundred twenty-one".