1628264 has 16 divisors (see below), whose sum is σ = 3330720. Its totient is φ = 740080.

The previous prime is 1628261. The next prime is 1628279. The reversal of 1628264 is 4628261.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (1628261) 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, 9164 + ... + 9339.

It is an arithmetic number, because the mean of its divisors is an integer number (208170).

2^1628264 is an apocalyptic number.

It is an amenable number.

1628264 is an abundant number, since it is smaller than the sum of its proper divisors (1702456).

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

1628264 is a wasteful number, since it uses less digits than its factorization.

1628264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18520 (or 18516 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 1628264 is about 1276.0344822927. The cubic root of 1628264 is about 117.6453971922.

The spelling of 1628264 in words is "one million, six hundred twenty-eight thousand, two hundred sixty-four".