4368731920 has 40 divisors (see below), whose sum is σ = 11608346304. Its totient is φ = 1497850752.

The previous prime is 4368731909. The next prime is 4368731929. The reversal of 4368731920 is 291378634.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (4368731929) 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, 3900094 + ... + 3901213.

Almost surely, 2^4368731920 is an apocalyptic number.

4368731920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4368731920 is an abundant number, since it is smaller than the sum of its proper divisors (7239614384).

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

4368731920 is a wasteful number, since it uses less digits than its factorization.

4368731920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7801327 (or 7801321 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 4368731920 is about 66096.3835621889. The cubic root of 4368731920 is about 1634.7517034813.

The spelling of 4368731920 in words is "four billion, three hundred sixty-eight million, seven hundred thirty-one thousand, nine hundred twenty".