3820400202 has 16 divisors (see below), whose sum is σ = 7904276640. Its totient is φ = 1229554032.

The previous prime is 3820400201. The next prime is 3820400237. The reversal of 3820400202 is 2020040283.

It is not an unprimeable number, because it can be changed into a prime (3820400201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10977988 + ... + 10978335.

It is an arithmetic number, because the mean of its divisors is an integer number (494017290).

Almost surely, 2^3820400202 is an apocalyptic number.

3820400202 is an abundant number, since it is smaller than the sum of its proper divisors (4083876438).

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

3820400202 is a wasteful number, since it uses less digits than its factorization.

3820400202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21956357.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 3820400202 is about 61809.3860348087. The cubic root of 3820400202 is about 1563.2782532147.

Adding to 3820400202 its reverse (2020040283), we get a palindrome (5840440485).

The spelling of 3820400202 in words is "three billion, eight hundred twenty million, four hundred thousand, two hundred two".