18790950 has 48 divisors (see below), whose sum is σ = 49349520. Its totient is φ = 4715520.

The previous prime is 18790939. The next prime is 18790979. The reversal of 18790950 is 5909781.

18790950 = T₂₉₁ + T₂₉₂ + ... + T₅₁₅.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 18790899 and 18790908.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1135 + ... + 6234.

It is an arithmetic number, because the mean of its divisors is an integer number (1028115).

Almost surely, 2^18790950 is an apocalyptic number.

18790950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18790950 is an abundant number, since it is smaller than the sum of its proper divisors (30558570).

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

18790950 is a wasteful number, since it uses less digits than its factorization.

18790950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7401 (or 7396 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 39.

The square root of 18790950 is about 4334.8529386820. The cubic root of 18790950 is about 265.8579055278.

The spelling of 18790950 in words is "eighteen million, seven hundred ninety thousand, nine hundred fifty".