19540234 has 16 divisors (see below), whose sum is σ = 33558336. Its totient is φ = 8359200.

The previous prime is 19540223. The next prime is 19540237. The reversal of 19540234 is 43204591.

It is not an unprimeable number, because it can be changed into a prime (19540237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10494 + ... + 12214.

It is an arithmetic number, because the mean of its divisors is an integer number (2097396).

Almost surely, 2^19540234 is an apocalyptic number.

19540234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19540234 is a deficient number, since it is larger than the sum of its proper divisors (14018102).

19540234 is a wasteful number, since it uses less digits than its factorization.

19540234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2541.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 19540234 is about 4420.4336891305. The cubic root of 19540234 is about 269.3456215325.

The spelling of 19540234 in words is "nineteen million, five hundred forty thousand, two hundred thirty-four".