3952940220 has 36 divisors (see below), whose sum is σ = 11990585880. Its totient is φ = 1054117344.

The previous prime is 3952940219. The next prime is 3952940227. The reversal of 3952940220 is 220492593.

3952940220 is a `hidden beast` number, since 395 + 2 + 9 + 40 + 220 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3952940227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10980210 + ... + 10980569.

It is an arithmetic number, because the mean of its divisors is an integer number (333071830).

Almost surely, 2^3952940220 is an apocalyptic number.

3952940220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3952940220 is an abundant number, since it is smaller than the sum of its proper divisors (8037645660).

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

3952940220 is a wasteful number, since it uses less digits than its factorization.

3952940220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21960794 (or 21960789 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 3952940220 is about 62872.4122330295. The cubic root of 3952940220 is about 1581.1512492919.

The spelling of 3952940220 in words is "three billion, nine hundred fifty-two million, nine hundred forty thousand, two hundred twenty".