1928630 has 32 divisors (see below), whose sum is σ = 3849120. Its totient is φ = 689920.

The previous prime is 1928629. The next prime is 1928653. The reversal of 1928630 is 368291.

It is a super-2 number, since 2×1928630² = 7439227353800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1928593 and 1928602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9692 + ... + 9888.

It is an arithmetic number, because the mean of its divisors is an integer number (120285).

2^1928630 is an apocalyptic number.

1928630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1928630 is a deficient number, since it is larger than the sum of its proper divisors (1920490).

1928630 is a wasteful number, since it uses less digits than its factorization.

1928630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 1928630 is about 1388.7512376232. The cubic root of 1928630 is about 124.4752400991.

The spelling of 1928630 in words is "one million, nine hundred twenty-eight thousand, six hundred thirty".