2279306421 has 12 divisors (see below), whose sum is σ = 3762664672. Its totient is φ = 1302460776.

The previous prime is 2279306383. The next prime is 2279306429. The reversal of 2279306421 is 1246039722.

2279306421 is a `hidden beast` number, since 2 + 2 + 7 + 9 + 3 + 0 + 642 + 1 = 666.

It is not a de Polignac number, because 2279306421 - 2¹¹ = 2279304373 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2279306429) 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 11 ways as a sum of consecutive naturals, for example, 18089671 + ... + 18089796.

Almost surely, 2^2279306421 is an apocalyptic number.

2279306421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2279306421 is a deficient number, since it is larger than the sum of its proper divisors (1483358251).

2279306421 is a wasteful number, since it uses less digits than its factorization.

2279306421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36179480 (or 36179477 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 2279306421 is about 47742.0822859665. The cubic root of 2279306421 is about 1316.0353994121.

The spelling of 2279306421 in words is "two billion, two hundred seventy-nine million, three hundred six thousand, four hundred twenty-one".