264034021 has 4 divisors (see below), whose sum is σ = 279565452. Its totient is φ = 248502592.

The previous prime is 264033989. The next prime is 264034031. The reversal of 264034021 is 120430462.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120430462 = 2 ⋅60215231.

It can be written as a sum of positive squares in 2 ways, for example, as 226653025 + 37380996 = 15055^2 + 6114^2 .

It is a cyclic number.

It is not a de Polignac number, because 264034021 - 2⁵ = 264033989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 264033983 and 264034001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264034031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7765690 + ... + 7765723.

It is an arithmetic number, because the mean of its divisors is an integer number (69891363).

Almost surely, 2^264034021 is an apocalyptic number.

It is an amenable number.

264034021 is a deficient number, since it is larger than the sum of its proper divisors (15531431).

264034021 is a wasteful number, since it uses less digits than its factorization.

264034021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15531430.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 264034021 is about 16249.1236994491. The cubic root of 264034021 is about 641.5344212614.

Adding to 264034021 its reverse (120430462), we get a palindrome (384464483).

The spelling of 264034021 in words is "two hundred sixty-four million, thirty-four thousand, twenty-one".