19243434 has 32 divisors (see below), whose sum is σ = 44167680. Its totient is φ = 5475312.

The previous prime is 19243423. The next prime is 19243517. The reversal of 19243434 is 43434291.

It is a super-2 number, since 2×19243434² = 740619504224712, which contains 22 as substring.

It is a Curzon number.

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, 11077 + ... + 12695.

It is an arithmetic number, because the mean of its divisors is an integer number (1380240).

Almost surely, 2^19243434 is an apocalyptic number.

19243434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19243434 is an abundant number, since it is smaller than the sum of its proper divisors (24924246).

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

19243434 is a wasteful number, since it uses less digits than its factorization.

19243434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914.

The product of its digits is 10368, while the sum is 30.

The square root of 19243434 is about 4386.7338647335. The cubic root of 19243434 is about 267.9749456789.

The spelling of 19243434 in words is "nineteen million, two hundred forty-three thousand, four hundred thirty-four".