3820402 has 16 divisors (see below), whose sum is σ = 5976000. Its totient is φ = 1829520.

The previous prime is 3820391. The next prime is 3820423. The reversal of 3820402 is 2040283.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3820402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11377 + ... + 11707.

It is an arithmetic number, because the mean of its divisors is an integer number (373500).

Almost surely, 2^3820402 is an apocalyptic number.

3820402 is a deficient number, since it is larger than the sum of its proper divisors (2155598).

3820402 is a wasteful number, since it uses less digits than its factorization.

3820402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 3820402 is about 1954.5848664103. The cubic root of 3820402 is about 156.3278498457.

Adding to 3820402 its reverse (2040283), we get a palindrome (5860685).

The spelling of 3820402 in words is "three million, eight hundred twenty thousand, four hundred two".