1928970 has 24 divisors (see below), whose sum is σ = 5015556. Its totient is φ = 514368.

The previous prime is 1928963. The next prime is 1928989. The reversal of 1928970 is 798291.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1734489 + 194481 = 1317^2 + 441^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10627 + ... + 10806.

2^1928970 is an apocalyptic number.

1928970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1928970 is an abundant number, since it is smaller than the sum of its proper divisors (3086586).

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

1928970 is a wasteful number, since it uses less digits than its factorization.

1928970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21446 (or 21443 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 1928970 is about 1388.8736443608. The cubic root of 1928970 is about 124.4825542885.

The spelling of 1928970 in words is "one million, nine hundred twenty-eight thousand, nine hundred seventy".