18925130 has 32 divisors (see below), whose sum is σ = 39989376. Its totient is φ = 6312384.

The previous prime is 18925111. The next prime is 18925201. The reversal of 18925130 is 3152981.

18925130 = T₁₅₈₁ + T₁₅₈₂ + ... + T₁₅₉₅.

It is a junction number, because it is equal to n+sod(n) for n = 18925093 and 18925102.

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, 1064 + ... + 6243.

It is an arithmetic number, because the mean of its divisors is an integer number (1249668).

Almost surely, 2^18925130 is an apocalyptic number.

18925130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18925130 is an abundant number, since it is smaller than the sum of its proper divisors (21064246).

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

18925130 is a wasteful number, since it uses less digits than its factorization.

18925130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7358.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 18925130 is about 4350.3022883473. The cubic root of 18925130 is about 266.4892065837.

The spelling of 18925130 in words is "eighteen million, nine hundred twenty-five thousand, one hundred thirty".