1616474 has 4 divisors (see below), whose sum is σ = 2424714. Its totient is φ = 808236.

The previous prime is 1616473. The next prime is 1616491. The reversal of 1616474 is 4746161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4746161 = 7 ⋅678023.

It can be written as a sum of positive squares in only one way, i.e., 819025 + 797449 = 905^2 + 893^2 .

It is a super-2 number, since 2×1616474² = 5225976385352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1616473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404117 + ... + 404120.

2^1616474 is an apocalyptic number.

1616474 is a deficient number, since it is larger than the sum of its proper divisors (808240).

1616474 is an equidigital number, since it uses as much as digits as its factorization.

1616474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808239.

The product of its digits is 4032, while the sum is 29.

The square root of 1616474 is about 1271.4063079913. The cubic root of 1616474 is about 117.3607585542.

The spelling of 1616474 in words is "one million, six hundred sixteen thousand, four hundred seventy-four".