19426134 has 64 divisors (see below), whose sum is σ = 48900096. Its totient is φ = 5007744.

The previous prime is 19426133. The next prime is 19426139. The reversal of 19426134 is 43162491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19426133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25284 + ... + 26040.

It is an arithmetic number, because the mean of its divisors is an integer number (764064).

Almost surely, 2^19426134 is an apocalyptic number.

19426134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 19426134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24450048).

19426134 is an abundant number, since it is smaller than the sum of its proper divisors (29473962).

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

19426134 is a wasteful number, since it uses less digits than its factorization.

19426134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829.

The product of its digits is 5184, while the sum is 30.

The square root of 19426134 is about 4407.5088201840. The cubic root of 19426134 is about 268.8203404127.

The spelling of 19426134 in words is "nineteen million, four hundred twenty-six thousand, one hundred thirty-four".