3658192020 has 216 divisors, whose sum is σ = 12969284328. Its totient is φ = 832204800.

The previous prime is 3658192003. The next prime is 3658192051. The reversal of 3658192020 is 202918563.

3658192020 is a `hidden beast` number, since 36 + 581 + 9 + 20 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1092566916 + 2565625104 = 33054^2 + 50652^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2124760 + ... + 2126480.

It is an arithmetic number, because the mean of its divisors is an integer number (60042983).

Almost surely, 2^3658192020 is an apocalyptic number.

3658192020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3658192020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6484642164).

3658192020 is an abundant number, since it is smaller than the sum of its proper divisors (9311092308).

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

3658192020 is a wasteful number, since it uses less digits than its factorization.

3658192020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1991 (or 1979 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 3658192020 is about 60482.9895094480. The cubic root of 3658192020 is about 1540.8327452094.

The spelling of 3658192020 in words is "three billion, six hundred fifty-eight million, one hundred ninety-two thousand, twenty".