1616264 has 16 divisors (see below), whose sum is σ = 3263820. Its totient is φ = 745920.

The previous prime is 1616231. The next prime is 1616269. The reversal of 1616264 is 4626161.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1612900 + 3364 = 1270^2 + 58^2 .

It is a super-2 number, since 2×1616264² = 5224618635392, which contains 22 as substring.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (1616269) 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, 7667 + ... + 7874.

2^1616264 is an apocalyptic number.

It is an amenable number.

1616264 is an abundant number, since it is smaller than the sum of its proper divisors (1647556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1616264 is a wasteful number, since it uses less digits than its factorization.

1616264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15560 (or 15556 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

The square root of 1616264 is about 1271.3237195931. The cubic root of 1616264 is about 117.3556761286.

It can be divided in two parts, 1616 and 264, that multiplied together give a palindrome (426624).

The spelling of 1616264 in words is "one million, six hundred sixteen thousand, two hundred sixty-four".