19807152 has 40 divisors (see below), whose sum is σ = 51340464. Its totient is φ = 6580224.

The previous prime is 19807121. The next prime is 19807187. The reversal of 19807152 is 25170891.

It is a super-2 number, since 2×19807152² = 784646540702208, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20308 + ... + 21260.

Almost surely, 2^19807152 is an apocalyptic number.

19807152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19807152 is an abundant number, since it is smaller than the sum of its proper divisors (31533312).

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

19807152 is a wasteful number, since it uses less digits than its factorization.

19807152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397 (or 1391 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 19807152 is about 4450.5226659349. The cubic root of 19807152 is about 270.5664923557.

The spelling of 19807152 in words is "nineteen million, eight hundred seven thousand, one hundred fifty-two".