2628770 has 8 divisors (see below), whose sum is σ = 4731804. Its totient is φ = 1051504.

The previous prime is 2628749. The next prime is 2628779. The reversal of 2628770 is 778262.

It can be written as a sum of positive squares in 2 ways, for example, as 2253001 + 375769 = 1501^2 + 613^2 .

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

It is a d-powerful number, because it can be written as 2¹³ + 6⁷ + 2¹³ + 8⁷ + 7⁶ + 7⁶ + 0 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2628779) 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, 131429 + ... + 131448.

2^2628770 is an apocalyptic number.

2628770 is a deficient number, since it is larger than the sum of its proper divisors (2103034).

2628770 is a wasteful number, since it uses less digits than its factorization.

2628770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262884.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 2628770 is about 1621.3482044274. The cubic root of 2628770 is about 138.0122162398.

The spelling of 2628770 in words is "two million, six hundred twenty-eight thousand, seven hundred seventy".