1616042 has 4 divisors (see below), whose sum is σ = 2424066. Its totient is φ = 808020.

The previous prime is 1616039. The next prime is 1616047. The reversal of 1616042 is 2406161.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 1590121 + 25921 = 1261^2 + 161^2 .

It is a super-2 number, since 2×1616042² = 5223183491528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1616047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404009 + ... + 404012.

2^1616042 is an apocalyptic number.

1616042 is a deficient number, since it is larger than the sum of its proper divisors (808024).

1616042 is an equidigital number, since it uses as much as digits as its factorization.

1616042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808023.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1616042 is about 1271.2364060237. The cubic root of 1616042 is about 117.3503027999.

The spelling of 1616042 in words is "one million, six hundred sixteen thousand, forty-two".