3827291220 has 72 divisors (see below), whose sum is σ = 12220484640. Its totient is φ = 966893760.

The previous prime is 3827291197. The next prime is 3827291227. The reversal of 3827291220 is 221927283.

3827291220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (3827291227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 556126 + ... + 562965.

Almost surely, 2^3827291220 is an apocalyptic number.

3827291220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3827291220 is an abundant number, since it is smaller than the sum of its proper divisors (8393193420).

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

3827291220 is a wasteful number, since it uses less digits than its factorization.

3827291220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119125 (or 1119120 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 3827291220 is about 61865.1050269859. The cubic root of 3827291220 is about 1564.2176057703.

The spelling of 3827291220 in words is "three billion, eight hundred twenty-seven million, two hundred ninety-one thousand, two hundred twenty".