19013090 has 32 divisors (see below), whose sum is σ = 35354880. Its totient is φ = 7358400.

The previous prime is 19013087. The next prime is 19013101. The reversal of 19013090 is 9031091.

It is a super-2 number, since 2×19013090² = 722995182696200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43091 + ... + 43529.

It is an arithmetic number, because the mean of its divisors is an integer number (1104840).

Almost surely, 2^19013090 is an apocalyptic number.

19013090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19013090 is a deficient number, since it is larger than the sum of its proper divisors (16341790).

19013090 is a wasteful number, since it uses less digits than its factorization.

19013090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578.

The product of its (nonzero) digits is 243, while the sum is 23.

The square root of 19013090 is about 4360.4002109898. The cubic root of 19013090 is about 266.9014304146.

The spelling of 19013090 in words is "nineteen million, thirteen thousand, ninety".