1628064 has 36 divisors (see below), whose sum is σ = 4630626. Its totient is φ = 542592.

The previous prime is 1628063. The next prime is 1628071. The reversal of 1628064 is 4608261.

It can be written as a sum of positive squares in only one way, i.e., 1192464 + 435600 = 1092^2 + 660^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (1628063) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2539 + ... + 3114.

2^1628064 is an apocalyptic number.

It is an amenable number.

1628064 is an abundant number, since it is smaller than the sum of its proper divisors (3002562).

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

1628064 is a wasteful number, since it uses less digits than its factorization.

1628064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5669 (or 5658 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1628064 is about 1275.9561120979. The cubic root of 1628064 is about 117.6405801923.

The spelling of 1628064 in words is "one million, six hundred twenty-eight thousand, sixty-four".