1628045 has 8 divisors (see below), whose sum is σ = 1977696. Its totient is φ = 1286416.

The previous prime is 1627981. The next prime is 1628051. The reversal of 1628045 is 5408261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1628045 - 2⁶ = 1627981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1547 + ... + 2376.

It is an arithmetic number, because the mean of its divisors is an integer number (247212).

2^1628045 is an apocalyptic number.

It is an amenable number.

1628045 is a deficient number, since it is larger than the sum of its proper divisors (349651).

1628045 is an equidigital number, since it uses as much as digits as its factorization.

1628045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4011.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1628045 is about 1275.9486666790. The cubic root of 1628045 is about 117.6401225567.

The spelling of 1628045 in words is "one million, six hundred twenty-eight thousand, forty-five".