3902401 has 4 divisors (see below), whose sum is σ = 4131972. Its totient is φ = 3672832.

The previous prime is 3902399. The next prime is 3902417. The reversal of 3902401 is 1042093.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1345600 + 2556801 = 1160^2 + 1599^2 .

It is a cyclic number.

It is not a de Polignac number, because 3902401 - 2¹ = 3902399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3902441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114760 + ... + 114793.

It is an arithmetic number, because the mean of its divisors is an integer number (1032993).

Almost surely, 2^3902401 is an apocalyptic number.

It is an amenable number.

3902401 is a deficient number, since it is larger than the sum of its proper divisors (229571).

3902401 is a wasteful number, since it uses less digits than its factorization.

3902401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229570.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 3902401 is about 1975.4495690855. The cubic root of 3902401 is about 157.4383869192.

Adding to 3902401 its reverse (1042093), we get a palindrome (4944494).

The spelling of 3902401 in words is "three million, nine hundred two thousand, four hundred one".