1600402 has 8 divisors (see below), whose sum is σ = 2414412. Its totient is φ = 795600.

The previous prime is 1600393. The next prime is 1600421. The reversal of 1600402 is 2040061.

It can be written as a sum of positive squares in 2 ways, for example, as 1560001 + 40401 = 1249^2 + 201^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1600402² = 5122573123208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1849 + ... + 2572.

2^1600402 is an apocalyptic number.

1600402 is a deficient number, since it is larger than the sum of its proper divisors (814010).

1600402 is a wasteful number, since it uses less digits than its factorization.

1600402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4604.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1600402 is about 1265.0699585398. The cubic root of 1600402 is about 116.9705041677.

Adding to 1600402 its reverse (2040061), we get a palindrome (3640463).

It can be divided in two parts, 1600 and 402, that added together give a palindrome (2002).

The spelling of 1600402 in words is "one million, six hundred thousand, four hundred two".