3872055402 has 48 divisors (see below), whose sum is σ = 8648625960. Its totient is φ = 1251075456.

The previous prime is 3872055389. The next prime is 3872055427. The reversal of 3872055402 is 2045502783.

3872055402 is a `hidden beast` number, since 3 + 87 + 20 + 554 + 0 + 2 = 666.

3872055402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3862746801 + 9308601 = 62151^2 + 3051^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 168348 + ... + 189960.

Almost surely, 2^3872055402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3872055402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4324312980).

3872055402 is an abundant number, since it is smaller than the sum of its proper divisors (4776570558).

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

3872055402 is a wasteful number, since it uses less digits than its factorization.

3872055402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21927 (or 21924 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 3872055402 is about 62225.8419147544. The cubic root of 3872055402 is about 1570.2923714767.

The spelling of 3872055402 in words is "three billion, eight hundred seventy-two million, fifty-five thousand, four hundred two".