19601340 has 96 divisors (see below), whose sum is σ = 63431424. Its totient is φ = 4469760.

The previous prime is 19601333. The next prime is 19601341. The reversal of 19601340 is 4310691.

It is a self number, because there is not a number n which added to its sum of digits gives 19601340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19601341) 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, 10347 + ... + 12093.

It is an arithmetic number, because the mean of its divisors is an integer number (660744).

Almost surely, 2^19601340 is an apocalyptic number.

19601340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19601340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31715712).

19601340 is an abundant number, since it is smaller than the sum of its proper divisors (43830084).

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

19601340 is a wasteful number, since it uses less digits than its factorization.

19601340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787 (or 1785 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 19601340 is about 4427.3400592229. The cubic root of 19601340 is about 269.6260942378.

The spelling of 19601340 in words is "nineteen million, six hundred one thousand, three hundred forty".