1628364 has 12 divisors (see below), whose sum is σ = 3799544. Its totient is φ = 542784.

The previous prime is 1628359. The next prime is 1628369. The reversal of 1628364 is 4638261.

It is an interprime number because it is at equal distance from previous prime (1628359) and next prime (1628369).

It is a tau number, because it is divible by the number of its divisors (12).

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (1628369) 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, 67837 + ... + 67860.

2^1628364 is an apocalyptic number.

It is an amenable number.

1628364 is an abundant number, since it is smaller than the sum of its proper divisors (2171180).

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

1628364 is a wasteful number, since it uses less digits than its factorization.

1628364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135704 (or 135702 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 1628364 is about 1276.0736655852. The cubic root of 1628364 is about 117.6478055443.

The spelling of 1628364 in words is "one million, six hundred twenty-eight thousand, three hundred sixty-four".