1628232 has 16 divisors (see below), whose sum is σ = 4070640. Its totient is φ = 542736.

The previous prime is 1628227. The next prime is 1628261. The reversal of 1628232 is 2328261.

It is a super-2 number, since 2×1628232² = 5302278891648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 67843 = 1628232 / (1 + 6 + 2 + 8 + 2 + 3 + 2).

It is a nude number because it is divisible by every one of its digits.

It is a d-powerful number, because it can be written as 1 + 6² + 2⁴ + 8² + 2¹⁰ + 3¹³ + 2¹⁵ .

It is a plaindrome in base 15.

It is a nialpdrome in base 12.

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, 33898 + ... + 33945.

It is an arithmetic number, because the mean of its divisors is an integer number (254415).

2^1628232 is an apocalyptic number.

1628232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1628232 is an abundant number, since it is smaller than the sum of its proper divisors (2442408).

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

1628232 is a wasteful number, since it uses less digits than its factorization.

1628232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67852 (or 67848 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 1628232 is about 1276.0219433850. The cubic root of 1628232 is about 117.6446264987.

The spelling of 1628232 in words is "one million, six hundred twenty-eight thousand, two hundred thirty-two".