19740100 has 36 divisors (see below), whose sum is σ = 43042384. Its totient is φ = 7858080.

The previous prime is 19740067. The next prime is 19740121. The reversal of 19740100 is 104791.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30379 + ... + 31021.

Almost surely, 2^19740100 is an apocalyptic number.

19740100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19740100 is an abundant number, since it is smaller than the sum of its proper divisors (23302284).

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

19740100 is a wasteful number, since it uses less digits than its factorization.

19740100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964 (or 957 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 19740100 is about 4442.9832320188. The cubic root of 19740100 is about 270.2608361842.

Adding to 19740100 its reverse (104791), we get a palindrome (19844891).

The spelling of 19740100 in words is "nineteen million, seven hundred forty thousand, one hundred".