234260721 has 16 divisors (see below), whose sum is σ = 347289600. Its totient is φ = 156067344.

The previous prime is 234260717. The next prime is 234260791. The reversal of 234260721 is 127062432.

234260721 is a `hidden beast` number, since 2 + 34 + 2 + 607 + 21 = 666.

It is not a de Polignac number, because 234260721 - 2² = 234260717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (234260711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70935 + ... + 74163.

It is an arithmetic number, because the mean of its divisors is an integer number (21705600).

Almost surely, 2^234260721 is an apocalyptic number.

It is an amenable number.

234260721 is a deficient number, since it is larger than the sum of its proper divisors (113028879).

234260721 is a wasteful number, since it uses less digits than its factorization.

234260721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5925 (or 5919 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 234260721 is about 15305.5781008102. The cubic root of 234260721 is about 616.4527938470.

The spelling of 234260721 in words is "two hundred thirty-four million, two hundred sixty thousand, seven hundred twenty-one".