264416421 has 8 divisors (see below), whose sum is σ = 361154304. Its totient is φ = 171978080.

The previous prime is 264416387. The next prime is 264416431. The reversal of 264416421 is 124614462.

It is a happy number.

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-264416421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264416431) 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, 1074741 + ... + 1074986.

It is an arithmetic number, because the mean of its divisors is an integer number (45144288).

Almost surely, 2^264416421 is an apocalyptic number.

It is an amenable number.

264416421 is a deficient number, since it is larger than the sum of its proper divisors (96737883).

264416421 is a wasteful number, since it uses less digits than its factorization.

264416421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149771.

The product of its digits is 9216, while the sum is 30.

The square root of 264416421 is about 16260.8862304611. The cubic root of 264416421 is about 641.8439829149.

The spelling of 264416421 in words is "two hundred sixty-four million, four hundred sixteen thousand, four hundred twenty-one".