4239994320 has 60 divisors (see below), whose sum is σ = 14239316676. Its totient is φ = 1130664960.

The previous prime is 4239994261. The next prime is 4239994337. The reversal of 4239994320 is 234999324.

It is a happy number.

4239994320 is a `hidden beast` number, since 4 + 239 + 9 + 94 + 320 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2840037264 + 1399957056 = 53292^2 + 37416^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2943721 + ... + 2945160.

Almost surely, 2^4239994320 is an apocalyptic number.

4239994320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4239994320 is an abundant number, since it is smaller than the sum of its proper divisors (9999322356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4239994320 is a wasteful number, since it uses less digits than its factorization.

4239994320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5888900 (or 5888891 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The square root of 4239994320 is about 65115.2387694309. The cubic root of 4239994320 is about 1618.5337441712.

The spelling of 4239994320 in words is "four billion, two hundred thirty-nine million, nine hundred ninety-four thousand, three hundred twenty".