1928620 has 12 divisors (see below), whose sum is σ = 4050144. Its totient is φ = 771440.

The previous prime is 1928569. The next prime is 1928621. The reversal of 1928620 is 268291.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1928621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48196 + ... + 48235.

It is an arithmetic number, because the mean of its divisors is an integer number (337512).

2^1928620 is an apocalyptic number.

1928620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1928620 is an abundant number, since it is smaller than the sum of its proper divisors (2121524).

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

1928620 is a wasteful number, since it uses less digits than its factorization.

1928620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96440 (or 96438 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1928620 is about 1388.7476372617. The cubic root of 1928620 is about 124.4750249629.

It can be divided in two parts, 19286 and 20, that added together give a triangular number (19306 = T₁₉₆).

The spelling of 1928620 in words is "one million, nine hundred twenty-eight thousand, six hundred twenty".