1632428 has 24 divisors (see below), whose sum is σ = 3293472. Its totient is φ = 693504.

The previous prime is 1632427. The next prime is 1632431. The reversal of 1632428 is 8242361.

It is a d-powerful number, because it can be written as 1 + 6³ + 3¹³ + 2⁹ + 4⁶ + 2¹⁵ + 8³ .

It is a junction number, because it is equal to n+sod(n) for n = 1632397 and 1632406.

It is not an unprimeable number, because it can be changed into a prime (1632427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4676 + ... + 5012.

It is an arithmetic number, because the mean of its divisors is an integer number (137228).

2^1632428 is an apocalyptic number.

It is an amenable number.

1632428 is an abundant number, since it is smaller than the sum of its proper divisors (1661044).

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

1632428 is a wasteful number, since it uses less digits than its factorization.

1632428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521 (or 519 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 1632428 is about 1277.6650578301. The cubic root of 1632428 is about 117.7455976585.

Adding to 1632428 its reverse (8242361), we get a palindrome (9874789).

The spelling of 1632428 in words is "one million, six hundred thirty-two thousand, four hundred twenty-eight".