3954309720 has 32 divisors (see below), whose sum is σ = 11862929520. Its totient is φ = 1054482560.

The previous prime is 3954309691. The next prime is 3954309721. The reversal of 3954309720 is 279034593.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3954309721) 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 7 ways as a sum of consecutive naturals, for example, 16476171 + ... + 16476410.

Almost surely, 2^3954309720 is an apocalyptic number.

3954309720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3954309720 is an abundant number, since it is smaller than the sum of its proper divisors (7908619800).

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

3954309720 is a wasteful number, since it uses less digits than its factorization.

3954309720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32952595 (or 32952591 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 42.

The square root of 3954309720 is about 62883.3023941968. The cubic root of 3954309720 is about 1581.3338253405. Note that the first 3 decimals are identical.

The spelling of 3954309720 in words is "three billion, nine hundred fifty-four million, three hundred nine thousand, seven hundred twenty".